Refine README structure

README.md

@@ -35,9 +35,8 @@ A collection of commonly used Smithy shapes.
   - [alloy#structurePattern](#alloystructurepattern)
   - [alloy.openapi](#alloyopenapi)
     - [alloy.openapi#openapiExtensions](#alloyopenapiopenapiextensions)
-  - [alloy#urlForm](#alloyurlform)
-    - [alloy#urlFormFlattened](#alloyurlformflattened)
-    - [alloy#urlFormName](#alloyurlformname)
+  - [alloy#urlFormFlattened](#alloyurlformflattened)
+  - [alloy#urlFormName](#alloyurlformname)
 - [Protocol Compliance Module](#protocol-compliance-module)
   - [Using the Protocol Compliance Tests](#using-the-protocol-compliance-tests)
 - [Working on Alloy](#working-on-alloy)
@@ -556,13 +555,9 @@ list StringList {
 }
 ```
 
-### alloy.urlForm
+#### alloy#urlFormFlattened
 
-url-form data equivalents of `xmlName` and `xmlFlattened`.
-
-#### alloy.urlFormFlattened
-
-Unwraps the values of a list, set, or map into the containing structure/union when serialized as url-form data.
+url-form data equivalent of `xmlFlattened`. Unwraps the values of a list, set, or map into the containing structure/union when serialized as url-form data.
 
 ```smithy
 structure User {
@@ -576,9 +571,9 @@ list StringList {
 }
 ```
 
-Changes the serialized url-form data key of a structure, union, or member.
+#### alloy#urlFormName
 
-#### alloy.urlFormName
+url-form data equivalent of `xmlName`. Changes the serialized url-form data key of a structure, union, or member.
 
 ```smithy
 structure User {