Merge pull request #311 from hashicorp/doc-fix

Make generate

Author: tanmay-hc

.web-docs/components/builder/googlecompute/README.md

@@ -601,9 +601,13 @@ The GCS location must be writeable by the service account of the instance that P
   useful if, for example, packer hangs on a connection after a reboot.
   Example: `5m`. Disabled by default.
 
-- `ssh_remote_tunnels` ([]string) - 
+- `ssh_remote_tunnels` ([]string) - Remote tunnels forward a port from your local machine to the instance.
+  Format: ["REMOTE_PORT:LOCAL_HOST:LOCAL_PORT"]
+  Example: "9090:localhost:80" forwards localhost:9090 on your machine to port 80 on the instance.
 
-- `ssh_local_tunnels` ([]string) - 
+- `ssh_local_tunnels` ([]string) - Local tunnels forward a port from the instance to your local machine.
+  Format: ["LOCAL_PORT:REMOTE_HOST:REMOTE_PORT"]
+  Example: "8080:localhost:3000" allows the instance to access your local machine’s port 3000 via localhost:8080.
 
 <!-- End of code generated from the comments of the SSH struct in communicator/config.go; -->