Updating TOC

Author: kruti-m

articles/cosmos-db/mongodb/vcore/TOC.yml

@@ -53,7 +53,7 @@
         - name: Connect using Studio 3T
           href: how-to-connect-studio-3t.md
         - name: Connect using MongoDB Shell
-          href: how-to-connect-mongoshell.md
+          href: how-to-connect-mongo-shell.md
     - name: Migrate data
       items:
         - name: Premigration assessment