trivial: fix indentation in paragraph

Author: kay-kim

source/reference/method/db.collection.renameCollection.txt

@@ -33,7 +33,7 @@ warnings and messages.
 
    The :method:`db.collection.renameCollection()` method and
    :dbcommand:`renameCollection` command will invalidate open cursors
-    which interrupts queries that are currently returning data.
+   which interrupts queries that are currently returning data.
 
    For :doc:`/changeStreams`, the
    :method:`db.collection.renameCollection()` method and