changed case in TOC file as well

Author: Dileep Rao

articles/cosmos-db/nosql/TOC.yml

@@ -747,7 +747,7 @@
           items:
             - name: Use Always Encrypted
               href: ../how-to-always-encrypted.md
-            - name: Self-Serve minimum tls version enforcement
+            - name: Self-serve minimum tls version enforcement
               href: ../self-serve-minimum-tls-enforcement.md
             - name: Configure customer-managed keys with Azure key vault
               href: ../how-to-setup-customer-managed-keys.md