Add discovery landing page and categories for repositories (#60145)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: jc-clark

content/repositories/archiving-a-github-repository/about-archiving-content-and-data-on-github.md

@@ -9,6 +9,8 @@ versions:
   fpt: '*'
   ghec: '*'
 shortTitle: Archive content & data
+category:
+  - Manage, move, and archive a repository
 ---
 ## Persistence of public repositories
 

content/repositories/archiving-a-github-repository/archiving-repositories.md

@@ -12,6 +12,8 @@ versions:
   fpt: '*'
   ghes: '*'
   ghec: '*'
+category:
+  - Manage, move, and archive a repository
 ---
 
 ## About repository archival

content/repositories/archiving-a-github-repository/backing-up-a-repository.md

@@ -9,6 +9,8 @@ versions:
   fpt: '*'
   ghes: '*'
   ghec: '*'
+category:
+  - Manage, move, and archive a repository
 ---
 
 You may want to take backups of repositories for archiving or disaster recovery purposes.

content/repositories/archiving-a-github-repository/referencing-and-citing-content.md

@@ -9,6 +9,8 @@ versions:
   fpt: '*'
   ghec: '*'
 shortTitle: Reference & cite content
+category:
+  - Manage, move, and archive a repository
 ---
 ## Issuing a persistent identifier for your repository with Zenodo
 

content/repositories/configuring-branches-and-merges-in-your-repository/configuring-pull-request-merges/about-merge-methods-on-github.md

@@ -10,6 +10,8 @@ versions:
   ghes: '*'
   ghec: '*'
 shortTitle: About merge methods
+category:
+  - Configure merges and pull requests
 ---
 {% data reusables.pull_requests.configure_pull_request_merges_intro %} You can enforce one type of merge method, such as commit squashing or rebasing, by only enabling the desired method for your repository.
 

content/repositories/configuring-branches-and-merges-in-your-repository/configuring-pull-request-merges/configuring-commit-merging-for-pull-requests.md

@@ -6,6 +6,8 @@ versions:
   ghes: '*'
   ghec: '*'
 shortTitle: Configure commit merging
+category:
+  - Configure merges and pull requests
 ---
 {% data reusables.pull_requests.configure_pull_request_merges_intro %}
 

content/repositories/configuring-branches-and-merges-in-your-repository/configuring-pull-request-merges/configuring-commit-rebasing-for-pull-requests.md

@@ -10,6 +10,8 @@ versions:
   ghes: '*'
   ghec: '*'
 shortTitle: Configure commit rebasing
+category:
+  - Configure merges and pull requests
 ---
 {% data reusables.pull_requests.configure_pull_request_merges_intro %}
 

content/repositories/configuring-branches-and-merges-in-your-repository/configuring-pull-request-merges/configuring-commit-squashing-for-pull-requests.md

@@ -10,6 +10,8 @@ versions:
   ghes: '*'
   ghec: '*'
 shortTitle: Configure commit squashing
+category:
+  - Configure merges and pull requests
 ---
 {% data reusables.pull_requests.configure_pull_request_merges_intro %}
 

content/repositories/configuring-branches-and-merges-in-your-repository/configuring-pull-request-merges/managing-a-merge-queue.md

@@ -10,6 +10,8 @@ product: '{% data reusables.gated-features.merge-queue %}'
 shortTitle: Managing merge queue
 redirect_from:
   - /repositories/configuring-branches-and-merges-in-your-repository/configuring-pull-request-merges/using-a-merge-queue
+category:
+  - Configure merges and pull requests
 ---
 
 ## About merge queues

content/repositories/configuring-branches-and-merges-in-your-repository/configuring-pull-request-merges/managing-auto-merge-for-pull-requests-in-your-repository.md

@@ -11,6 +11,8 @@ redirect_from:
   - /github/administering-a-repository/managing-auto-merge-for-pull-requests-in-your-repository
   - /github/administering-a-repository/configuring-pull-request-merges/managing-auto-merge-for-pull-requests-in-your-repository
 shortTitle: Manage auto merge
+category:
+  - Configure merges and pull requests
 ---
 ## About auto-merge