diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index e49ce53..8c8de54 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,12 +2,8 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="362a0db6-bd0a-4954-a98a-a4de6e6f2822" name="Default" comment="">
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/example/ios/SectionListDemo.xcodeproj/project.xcworkspace/xcuserdata/Roy.xcuserdatad/UserInterfaceState.xcuserstate" afterPath="$PROJECT_DIR$/example/ios/SectionListDemo.xcodeproj/project.xcworkspace/xcuserdata/Roy.xcuserdatad/UserInterfaceState.xcuserstate" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/README.md" afterPath="$PROJECT_DIR$/README.md" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/SectionListContacts.js" afterPath="$PROJECT_DIR$/SectionListContacts.js" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/example/App.js" afterPath="$PROJECT_DIR$/example/App.js" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/package.json" afterPath="$PROJECT_DIR$/package.json" />
     </list>
     <ignored path="$PROJECT_DIR$/.tmp/" />
     <ignored path="$PROJECT_DIR$/temp/" />
@@ -35,7 +31,7 @@
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="package.json" pinned="false" current-in-tab="true">
+      <file leaf-file-name="package.json" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/package.json">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="240">
@@ -80,13 +76,14 @@
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="README.md" pinned="false" current-in-tab="false">
+      <file leaf-file-name="README.md" pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/README.md">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="508">
-              <caret line="97" column="50" lean-forward="false" selection-start-line="97" selection-start-column="50" selection-end-line="97" selection-end-column="50" />
+            <state relative-caret-position="283">
+              <caret line="115" column="40" lean-forward="true" selection-start-line="115" selection-start-column="40" selection-end-line="115" selection-end-column="40" />
               <folding>
-                <marker date="1543540523390" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+                <marker date="1543540982954" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+                <marker date="1543540982954" expanded="true" signature="3948:4218" ph="&lt;HEAD/&gt;" />
               </folding>
             </state>
           </provider>
@@ -149,7 +146,6 @@
   <component name="IdeDocumentHistory">
     <option name="CHANGED_PATHS">
       <list>
-        <option value="$PROJECT_DIR$/README.md" />
         <option value="$PROJECT_DIR$/example/sectionlistModule.js" />
         <option value="$PROJECT_DIR$/.gitignore" />
         <option value="$PROJECT_DIR$/example/ScetionListContacts.js" />
@@ -160,6 +156,7 @@
         <option value="$PROJECT_DIR$/SectionListContacts.js" />
         <option value="$PROJECT_DIR$/example/App.js" />
         <option value="$PROJECT_DIR$/package.json" />
+        <option value="$PROJECT_DIR$/README.md" />
       </list>
     </option>
   </component>
@@ -175,8 +172,8 @@
     <handled-path value="$PROJECT_DIR$/example/node_modules" />
   </component>
   <component name="ProjectFrameBounds">
-    <option name="x" value="315" />
-    <option name="y" value="89" />
+    <option name="x" value="30" />
+    <option name="y" value="23" />
     <option name="width" value="1164" />
     <option name="height" value="711" />
   </component>
@@ -311,19 +308,19 @@
       <workItem from="1539918848918" duration="2806000" />
       <workItem from="1540796512187" duration="188000" />
       <workItem from="1543470404104" duration="496000" />
-      <workItem from="1543539235085" duration="817000" />
+      <workItem from="1543539235085" duration="1201000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="14966000" />
+    <option name="totallyTimeSpent" value="15350000" />
   </component>
   <component name="ToolWindowManager">
-    <frame x="315" y="89" width="1164" height="711" extended-state="0" />
-    <editor active="true" />
+    <frame x="30" y="23" width="1164" height="711" extended-state="0" />
+    <editor active="false" />
     <layout>
       <window_info id="TypeScript" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
-      <window_info id="Project" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.24934383" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
+      <window_info id="Project" active="true" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.24934383" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
       <window_info id="TODO" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
       <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="true" content_ui="tabs" />
       <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
@@ -378,7 +375,8 @@
         <state relative-caret-position="1410">
           <caret line="94" column="50" lean-forward="false" selection-start-line="94" selection-start-column="50" selection-end-line="94" selection-end-column="50" />
           <folding>
-            <marker date="1543540523390" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+            <marker date="1543540982954" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+            <marker date="1543540982954" expanded="true" signature="3948:4218" ph="&lt;HEAD/&gt;" />
           </folding>
         </state>
       </provider>
@@ -602,7 +600,8 @@
         <state relative-caret-position="0">
           <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
           <folding>
-            <marker date="1543540523390" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+            <marker date="1543540982954" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+            <marker date="1543540982954" expanded="true" signature="3948:4218" ph="&lt;HEAD/&gt;" />
           </folding>
         </state>
       </provider>
@@ -612,7 +611,8 @@
         <state relative-caret-position="0">
           <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
           <folding>
-            <marker date="1543540523390" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+            <marker date="1543540982954" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+            <marker date="1543540982954" expanded="true" signature="3948:4218" ph="&lt;HEAD/&gt;" />
           </folding>
         </state>
       </provider>
@@ -705,16 +705,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/README.md">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="508">
-          <caret line="97" column="50" lean-forward="false" selection-start-line="97" selection-start-column="50" selection-end-line="97" selection-end-column="50" />
-          <folding>
-            <marker date="1543540523390" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/SectionListContacts.js">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="235">
@@ -739,5 +729,16 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/README.md">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="283">
+          <caret line="115" column="40" lean-forward="true" selection-start-line="115" selection-start-column="40" selection-end-line="115" selection-end-column="40" />
+          <folding>
+            <marker date="1543540982954" expanded="true" signature="1451:1463" ph="&lt;SectionListModule/&gt;" />
+            <marker date="1543540982954" expanded="true" signature="3948:4218" ph="&lt;HEAD/&gt;" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
   </component>
 </project>
\ No newline at end of file
diff --git a/README.md b/README.md
index 09775c8..9934939 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,6 @@ Basic usage
                     <SectionListContacts
                         ref={s=>this.sectionList=s}
                         sectionListData={this.state.dataArray}
-                        sectionHeight={50}
                         initialNumToRender={this.state.dataArray.length}
                         showsVerticalScrollIndicator={false}
                         SectionListClickCallback={(item,index)=>{