Merge pull request #3758 from github/add_answer_to_trubs_dev_app

add another answer to a troubleshooting question

content/developers/apps/setting-up-your-development-environment-to-create-a-github-app.md

@@ -420,7 +420,7 @@ Here are a few common problems and some suggested solutions. If you run into any
 
 * **Q:** My server isn't listening to events! The Smee client is running in a Terminal window, and I'm installing the app on a repository on GitHub, but I don't see any output in the Terminal window where I'm running the server.
 
-    **A:** You may not be running the Smee client, or you may not have the correct Smee domain in your GitHub App settings. First check to make sure the Smee client is running in a Terminal tab. If that's not the problem, visit your [app settings page](https://github.com/settings/apps) and check the fields shown in "[Step 2. Register a new GitHub App](#step-2-register-a-new-github-app)." Make sure the domain in those fields matches the domain you used in your `smee -u <unique_channel>` command in "[Step 1. Start a new Smee channel](#step-1-start-a-new-smee-channel)."
+    **A:** You may not be running the Smee client, running the Smee command with the wrong parameters or you may not have the correct Smee domain in your GitHub App settings. First check to make sure the Smee client is running in a Terminal tab. If that's not the problem, visit your [app settings page](https://github.com/settings/apps) and check the fields shown in "[Step 2. Register a new GitHub App](#step-2-register-a-new-github-app)." Make sure the domain in those fields matches the domain you used in your `smee -u <unique_channel>` command in "[Step 1. Start a new Smee channel](#step-1-start-a-new-smee-channel)." If none of the above work, check that you are running the full Smee command including the `--path` and `--port` options, for example: `smee --url https://smee.io/qrfeVRbFbffd6vD --path /event_handler --port 3000` (replacing `https://smee.io/qrfeVRbFbffd6vD` with your own Smee domain).
 
 * **Q:** I'm getting an `Octokit::NotFound` 404 error in my debug output:
     ```