doc: fixed name of binary to match latest release (#386)

Author: codediodeio

doc/admin/install/google_cloud.md

@@ -54,7 +54,7 @@ chmod +x code-server
 
 - Start the code-server
 ```
-sudo ./code-server-linux -p 80
+sudo ./code-server -p 80
 ```
 
 > For instructions on how to keep the server running after you end your SSH session please checkout [how to use systemd](https://www.linode.com/docs/quick-answers/linux/start-service-at-boot/) to start linux based services if they are killed