Adding a missing link to the Connection page (#95)

Author: DBirtolo-mdb

source/fundamentals/connection.txt

@@ -24,4 +24,5 @@ Overview
 In this section, you'll learn how to use the {+driver-short+} to connect your application to a MongoDB deployment. Click a link in the following list to jump to a topic: 
 
 - :ref:`How to Connect to MongoDB <csharp-connect-to-mongodb>`
-- :ref:`Connection Options <csharp-connection-options>`
+- :ref:`Connection Options <csharp-connection-options>`
+- :ref:`Enable TLS on a Connection <csharp-tls>`