Document System.Collections.Generic.IAsyncEnumera* and System.Drawing.Design.BitmapEditor (#2797)

* Document System.Collections.Generic.IAsyncEnumera* and System.Drawing.Design.BitmapEditor

* suggestions by rpetrusha

Co-Authored-By: Ron Petrusha <[email protected]>

Author: carlossanlop

xml/System.Collections.Generic/IAsyncEnumerable`1.xml

@@ -25,7 +25,7 @@
   </TypeParameters>
   <Interfaces />
   <Docs>
-    <typeparam name="T">To be added.</typeparam>
+    <typeparam name="T">The type of the elements in the collection.</typeparam>
     <summary>Exposes an enumerator that provides asynchronous iteration over values of a specified type.</summary>
     <remarks>To be added.</remarks>
   </Docs>

xml/System.Collections.Generic/IAsyncEnumerator`1.xml

@@ -29,7 +29,7 @@
     </Interface>
   </Interfaces>
   <Docs>
-    <typeparam name="T">To be added.</typeparam>
+    <typeparam name="T">The type of the elements in the collection.</typeparam>
     <summary>Supports a simple asynchronous iteration over a generic collection.</summary>
     <remarks>To be added.</remarks>
   </Docs>

xml/System.Drawing.Design/BitmapEditor.xml

@@ -97,7 +97,7 @@
         <ReturnType>System.Collections.Generic.List&lt;System.String&gt;</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
+        <summary>Provides the list of default file extensions used to filter the file list.</summary>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -195,4 +195,4 @@
       </Docs>
     </Member>
   </Members>
-</Type>
+</Type>