DOCS-9939: typo on removeTagRange page: use addShardTag

Author: kay-kim

source/reference/method/sh.removeTagRange.txt

@@ -22,7 +22,7 @@ Definition
    .. versionadded:: 3.0
 
    Removes a range of shard key values to a shard tag created using the
-   :method:`sh.removeShardTag()` method. :method:`sh.removeTagRange()` takes
+   :method:`sh.addShardTag()` method. :method:`sh.removeTagRange()` takes
    the following arguments:
 
    .. include:: /includes/apiargs/method-sh.removeTagRange-param.rst