updated readme file

README.md

@@ -8,3 +8,44 @@ https://support.cookiebot.com/hc/en-us/articles/360003812053-Hide-and-show-conte
 ## In this module
 
 This module adds Ckeditor plugin which convert Youtube iframe embeds to support cookie consent's. You can choose one of these values: 'preferences', 'statistics', or 'marketing' as data-cookieconsent attribute.
+
+You will find these settings under Content authoring / Iframe cookie consent
+
+/admin/config/content/iframe_cookie_consent
+
+## How to use
+
+Go Configuration / Content authoring / Text formats and editors and edit text format which you want to use Iframe cookie consent.
+
+/admin/config/content/formats/
+
+Now under Enabled filters you will see Iframe cookie consent which you just enable
+
+### Field support
+
+Youtube video can be embed to content in many way so easiest way to support fields are create or modify field template file.
+
+Here is an example.
+
+```
+<iframe
+  {{ attributes }}
+  {% if url is not empty %}
+    data-cookieblock-src={{ url }}
+    data-cookieconsent="marketing"
+    class=" cookieconsent-optin-marketing"
+
+    {% if query is not empty %}
+      ?{{ query | url_encode }}
+    {% endif %}
+
+    {% if fragment is not empty %}
+      #{{ fragment }}
+    {% endif %}"
+  {% endif %}
+  >
+</iframe>
+<div class="cookieconsent-optout-marketing">
+   {{ 'Please <a href="javascript:Cookiebot.renew()">accept marketing-cookies</a> to watch this video'|t }}
+</div>
+```