address feedback

Author: Wraith2

src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/AAsyncCallContext.cs

@@ -11,11 +11,11 @@ namespace Microsoft.Data.SqlClient
     // avoiding the use of closures and allowing caching/reuse of the instances for frequently used async
     // calls
     //
-    // DO derive from this and seal and your class
+    // DO derive from this and seal your class
     // DO add additional fields or properties needed for the async operation and then override Clear to zero them
     // DO override AfterClear and use the owner parameter to return the object to a cache location if you have one, this is the purpose of the method
     // CONSIDER creating your own Set method that calls the base Set rather than providing a parameterized ctor, it is friendlier to caching
-    // DO NOT use this class after Dispose has been called. It will not throw ObjectDisposedException but it will be a cleared object
+    // DO NOT use this class' state after Dispose has been called. It will not throw ObjectDisposedException but it will be a cleared object
 
     internal abstract class AAsyncCallContext<TOwner, TTask> : IDisposable
         where TOwner : class
@@ -50,7 +50,7 @@ protected void ClearCore()
         }
 
         /// <summary>
-        /// overrride this method to cleanup instance data before ClearCore is called which will blank the base data
+        /// override this method to cleanup instance data before ClearCore is called which will blank the base data
         /// </summary>
         protected virtual void Clear()
         {
@@ -61,7 +61,6 @@ protected virtual void Clear()
         /// </summary>
         protected virtual void AfterCleared(TOwner owner)
         {
-
         }
 
         public void Dispose()