small fix

Author: rustagir

source/usage-examples/updateMany.txt

@@ -5,7 +5,7 @@ Update Multiple Documents
 =========================
 
 .. meta::
-   :description: Learn how to update multiple documents in a collection using the updateMany() method in the MongoDB Go Driver.
+   :description: Learn how to update multiple documents in a collection using the UpdateMany() method in the MongoDB Go Driver.
 
 You can update multiple documents in a collection by using the ``UpdateMany()``
 method.