Update config related help for clarity (Azure#3231)

Author: N6UDP

src/ssh/azext_ssh/_help.py

@@ -24,20 +24,28 @@
 
 helps['ssh config'] = """
     type: command
-    short-summary: Create an SSH config for resources (Azure VMs, etc) which can then be imported to 3rd party SSH clients
+    short-summary: Create an SSH config for resources (Azure VMs, etc) which can then be used by clients that support OpenSSH configs and certificates
+    long-summary: Other software (git/rsync/etc) that support setting an SSH command can be set to use the config file by setting the command to 'ssh -F /path/to/config' e.g. rsync -e 'ssh -F /path/to/config'
     examples:
         - name: Give a resource group and VM for which to create a config, and save in a local file
           text: |
             az ssh config --resource-group myResourceGroup --vm-name myVm --file ./sshconfig
-        - name: Give the public IP (or hostname) of a VM for which to create a config
+        - name: Give the public IP (or hostname) of a VM for which to create a config and then ssh
           text: |
             az ssh config --ip 1.2.3.4 --file ./sshconfig
+            ssh -F ./sshconfig 1.2.3.4
         - name: Create a generic config for use with any host
           text: |
             #Bash
             az ssh config --ip \\* --file ./sshconfig
             #PowerShell
             az ssh config --ip * --file ./sshconfig
+        - name: Examples with other software
+          text: |
+            #Bash
+            az ssh config --ip \\* --file ./sshconfig
+            rsync -e 'ssh -F ./sshconfig' -avP directory/ myvm:~/directory
+            GIT_SSH_COMMAND="ssh -F ./sshconfig" git clone myvm:~/gitrepo
 """
 
 helps['ssh cert'] = """