update version info (#6700) (#6717)

Author: MongoCaleb

source/reference/change-events.txt

@@ -115,7 +115,7 @@ Operation Types
      - Occurs when the shard key for a collection and the distribution
        of data changes.
 
-       .. versionadded:: 6.1  
+       .. versionadded:: 6.1 *(Also available in 6.0.14)* 
 
 
    * - :data:`shardCollection`

source/reference/change-events/reshardCollection.txt

@@ -19,7 +19,7 @@ Summary
 
 .. data:: reshardCollection
 
-   .. versionadded:: 6.0
+   .. versionadded:: 6.1 *(Also available in 6.0.14)*
 
    A ``reshardCollection`` event occurs when the shard key for a
    collection and the distribution of your data is changed.