Add AWS Lambda link (#123)

Author: jordan-smith721

source/connect.txt

@@ -30,6 +30,7 @@ Connect to MongoDB
    Compress Network Traffic </connect/network-compression>
    Stable API </connect/stable-api>
    Connection Pools </connect/connection-pools>
+   AWS Lambda <https://www.mongodb.com/docs/atlas/manage-connections-aws-lambda/>
 
 Overview
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