Update frontmatter and intro info for the apps API (#27345)

Author: skedwards88

content/rest/apps/apps.md

@@ -1,6 +1,7 @@
 ---
-title: Apps
-intro: 'The GitHub Apps API enables you to retrieve the information about the installation as well as specific information about GitHub Apps.'
+title: GitHub Apps
+allowTitleToDifferFromFilename: true
+intro: 'The {% data variables.product.prodname_github_apps %} API enables you to retrieve information about {% data variables.product.prodname_github_apps %}.'
 topics:
   - API
 miniTocMaxHeadingLevel: 3
@@ -11,12 +12,14 @@ versions:
   ghec: '*'
 ---
 
+## About the {% data variables.product.prodname_github_apps %} API
+
 {% data reusables.apps.general-apps-restrictions %}
 
 This page lists endpoints that you can access while authenticated as a GitHub App. See "[Authenticating as a GitHub App](/apps/building-github-apps/authenticating-with-github-apps/#authenticating-as-a-github-app)" to learn more.
 
 When authenticated as a GitHub App, the GitHub Apps API enables you to get high-level information about a GitHub App as well as specific information about installations of an app.
 
-You can access REST API v3 endpoints while authenticated as a GitHub App. These endpoints have a "Notes" section that contains a bullet point that says "Works with GitHub Apps." You can also access these endpoints while authenticated as a user.
+You can access REST API v3 endpoints while authenticated as a GitHub App. These endpoints have text that says "Works with GitHub Apps." You can also access these endpoints while authenticated as a user.
 
 A subset of REST API v3 endpoints requires authenticating as a GitHub App installation. See [Installations](/rest/reference/apps#installations) for a list of these endpoints.

content/rest/apps/installations.md

@@ -1,6 +1,8 @@
 ---
-title: Installations
-intro: 'The Installations API enables you to get information about installations of your GitHub App and perform actions within those installations.'
+title: GitHub App installations
+allowTitleToDifferFromFilename: true
+shortTitle: Installations
+intro: 'The {% data variables.product.prodname_github_app %} installations API enables you to get information about installations of your {% data variables.product.prodname_github_app %} and perform actions within those installations.'
 topics:
   - API
 miniTocMaxHeadingLevel: 3
@@ -11,6 +13,8 @@ versions:
   ghec: '*'
 ---
 
+## About the {% data variables.product.prodname_github_app %} installations API
+
 An _installation_ refers to any user or organization account that has installed the app. For information on how to authenticate as an installation and limit access to specific repositories, see "[Authenticating as an installation](/apps/building-github-apps/authenticating-with-github-apps/#authenticating-as-an-installation)."
 
 To list all GitHub App installations for an organization, see "[List app installations for an organization](/rest/reference/orgs#list-app-installations-for-an-organization)."

content/rest/apps/marketplace.md

@@ -1,5 +1,7 @@
 ---
-title: Marketplace
+title: GitHub Marketplace
+allowTitleToDifferFromFilename: true
+shortTitle: Marketplace
 intro: ''
 topics:
   - API
@@ -9,6 +11,8 @@ versions:
   ghec: '*'
 ---
 
+## About the {% data variables.product.prodname_marketplace %} API
+
 For more information about {% data variables.product.prodname_marketplace %}, see "[GitHub Marketplace](/marketplace/)."
 
 The {% data variables.product.prodname_marketplace %} API allows you to see which customers are using a pricing plan, see a customer's purchases, and see if an account has an active subscription.

content/rest/apps/oauth-applications.md

@@ -1,5 +1,6 @@
 ---
-title: OAuth Applications
+title: OAuth Apps
+allowTitleToDifferFromFilename: true
 intro: ''
 topics:
   - API
@@ -11,4 +12,6 @@ versions:
   ghec: '*'
 ---
 
-You can use this API to manage the OAuth tokens an OAuth application uses to access people's accounts on {% ifversion ghae %}{% data variables.product.product_name %}{% else %}{% data variables.product.product_location %}{% endif %}.
+## About the {% data variables.product.prodname_oauth_app %} API
+
+You can use this API to manage the OAuth tokens an {% data variables.product.prodname_oauth_app %} uses to access people's accounts on {% ifversion ghae %}{% data variables.product.product_name %}{% else %}{% data variables.product.product_location %}{% endif %}.

content/rest/apps/webhooks.md

@@ -1,5 +1,7 @@
 ---
-title: Webhooks
+title: GitHub App webhooks
+allowTitleToDifferFromFilename: true
+shortTitle: Webhooks
 intro: ''
 topics:
   - API
@@ -11,4 +13,6 @@ versions:
   ghec: '*'
 ---
 
+## About the {% data variables.product.prodname_github_app %} webhooks API
+
 A {% data variables.product.prodname_github_app %}'s webhook allows you to receive HTTP `POST` payloads whenever certain events happen for an app. {% data reusables.webhooks.webhooks-rest-api-links %}