update remote-working-guide

notes/remote-working-guide.md

@@ -124,6 +124,7 @@ Change the remaining options as is in the screenshot below.
 
 4. In this step, we will configure SSH tunneling to locally run the notebooks. On the left side of the PuTTY window, navigate to **Tunnels** under SSH and then add a `[local-port]` in **Source port** and `localhost:[local-port]` in **Destination**.  Remember the `[local-port]`  you used here as we will need this later. 
         
+
 <center><img src="./notes/figures/putty3.png"></center> 
         
 Then press **Add** near the Source port box to add your new forwarded port. Once you add, you will see your newly added port as shown below -