Added the release notes MD file and corresponding node entry in the TOC.html file for the Weekly Nuget Release - April 12, 2022

Author: Website Automation

xamarin-android/Release-Notes/v20.1.0.48.md

@@ -9,6 +9,21 @@ documentation: ug
 
 {% include release-info.html date="April 12, 2022"  version="v20.1.0.48" %} 
 
+<style>
+#license {
+    font-size: .88em!important;
+margin-top: 1.5em;     margin-bottom: 1.5em;
+    background-color: #def8ff;
+    padding: 10px 17px 14px;
+}
+</style>
+
+
+<div id="license">
+Starting with 2022 Volume 1 v20.1.0.47, all Syncfusion customers (evaluators and paid customers) who use Syncfusion installers or nuget packages from <a href="https://www.nuget.org/packages?q=Syncfusion">nuget.org</a> must generate and register the corresponding platform and version license key in your projects.
+For more information, please see this <a href="https://help.syncfusion.com/common/essential-studio/licensing/license-key">help topic</a>
+</div>
+
 
 {% directory path: _includes/release-notes/v20.1.0.48 %}