fix github app manifests docs

Author: bexbexbexbexbex

assets/images/github-apps/github_apps_probot-registration.png

@@ -183,7 +183,7 @@ To create a Probot App that you can share, follow these steps:
 1. [Generate a new GitHub App](https://probot.github.io/docs/development/#generating-a-new-app).
 1. Open the project you created, and customize the settings in the `app.yml` file. Probot uses the settings in `app.yml` as the [GitHub App Manifest parameters](#github-app-manifest-parameters).
 1. Add your application's custom code.
-1. [Run the GitHub App locally](https://probot.github.io/docs/development/#running-the-app-locally) or [host it anywhere you'd like](#hosting-your-app-with-glitch). When you navigate to the hosted app's URL, you'll find a web page with a **Register GitHub App** button that people can click to create a preconfigured app. The web page below is Probot's implementation of [step 1](#1-you-redirect-people-to-github-to-create-a-new-github-app) in the GitHub App Manifest flow:
+1. [Run the GitHub App locally](https://probot.github.io/docs/development/#running-the-app-locally) or [host it anywhere you'd like](#hosting-your-app-with-glitch). When you navigate to the hosted app's URL, you'll find a web page with a **Register GitHub App** button that can be clicked to create a preconfigured app. The web page below is Probot's implementation of [step 1](#1-you-redirect-people-to-github-to-create-a-new-github-app) in the GitHub App Manifest flow:
 
 ![Register a Probot GitHub App](/assets/images/github-apps/github_apps_probot-registration.png)