fix

Author: mongoKart

source/upgrade/v2.txt

@@ -138,7 +138,8 @@ Version 2.19.0 Breaking Changes
   If your application uses the LINQ3 provider, you can't use ``-1`` to represent the
   :manual:`positional operator </reference/operator/update/positional/#mongodb-update-up.->`
   when updating an array. To learn how to use the positional operator, see
-  :ref:`<csharp-update-one-arrays>` and :ref:`<csharp-update-many-arrays>`.
+  :ref:`Update One <csharp-update-one-arrays>` and
+  :ref:`Update Many <csharp-update-many-arrays>`.
 
 Version 2.14.0 Breaking Changes
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~