docs: Update TOC block storage entries (PSKD-1025) (#602)

Signed-off-by: David.Houck <[email protected]>

Author: dhoucgitter

docs/CONFIG-VARS.md

@@ -8,7 +8,9 @@ Supported configuration variables are listed in the table below.  All variables
     - [Authentication](#authentication)
   - [Jump Server](#jump-server)
   - [Storage for AWS](#storage-for-aws)
-  - [Storage for Azure and Google Cloud](#storage-for-azure-and-google-cloud)
+  - [Storage for Azure](#storage-for-azure)
+  - [Storage for Google Cloud](#storage-for-google-cloud)
+  - [NFS Storage](#nfs-storage)
     - [RWX Filestore](#rwx-filestore)
     - [Azure](#azure)
     - [AWS](#aws)