docs: Prepare for new sub tree

See #11925

docs/.github/SUPPORT.md

@@ -1,3 +0,0 @@
-### Asking support questions
-
-We have an active [discussion forum](https://discourse.gohugo.io) where users and developers can ask questions. Please don't use the GitHub issue tracker to ask questions.

docs/.github/stale.yml

@@ -1,22 +0,0 @@
-# Number of days of inactivity before an issue becomes stale
-daysUntilStale: 120
-# Number of days of inactivity before a stale issue is closed
-daysUntilClose: 30
-# Issues with these labels will never be considered stale
-exemptLabels:
-  - Keep
-  - Security
-  - UndocumentedFeature
-# Label to use when marking an issue as stale
-staleLabel: Stale
-# Comment to post when marking an issue as stale. Set to `false` to disable
-markComment: >
-  This issue has been automatically marked as stale because it has not had
-  recent activity. The resources of the Hugo team are limited, and so we are asking for your help.
-
-  If you still think this is important, please tell us why.
-
-  This issue will automatically be closed in the near future if no further activity occurs. Thank you for all your contributions.
-
-# Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: false

docs/.github/workflows/codeql-analysis.yml

@@ -1,26 +0,0 @@
-name: "CodeQL"
-
-on:
-  schedule:
-    - cron: "0 0 1 * *"
-
-jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v2
-        with:
-          languages: "javascript"
-
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v2

docs/.github/workflows/spellcheck.yml

@@ -1,22 +0,0 @@
-name: "Check spelling"
-on:
-  push:
-  pull_request:
-    branches-ignore:
-      - "dependabot/**"
-
-permissions:
-  contents: read
-
-jobs:
-  spellcheck:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: streetsidesoftware/cspell-action@v5
-        with:
-          check_dot_files: false
-          files: content/**/*.md
-          incremental_files_only: true
-          inline: warning
-          strict: false

docs/.github/workflows/super-linter.yml

@@ -1,41 +0,0 @@
-name: Super Linter
-
-on:
-  workflow_dispatch:
-
-permissions:
-  contents: read #  to fetch code (actions/checkout)
-
-jobs:
-  build:
-    permissions:
-      contents: read #  to fetch code (actions/checkout)
-      statuses: write #  to mark status of each linter run (github/super-linter/slim)
-
-    name: Lint Code Base
-    runs-on: ubuntu-latest
-    if: ${{ github.actor != 'dependabot[bot]' }}
-
-    steps:
-      - name: Checkout Code
-        uses: actions/checkout@v4
-
-      - name: Lint Code Base
-        uses: super-linter/super-linter/slim@v5
-        env:
-          DEFAULT_BRANCH: master
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          IGNORE_GITIGNORED_FILES: true
-          LINTER_RULES_PATH: /
-          LOG_LEVEL: NOTICE
-          MARKDOWN_CONFIG_FILE: .markdownlint.yaml
-          SUPPRESS_POSSUM: true
-          VALIDATE_CSS: false
-          VALIDATE_EDITORCONFIG: false
-          VALIDATE_GITLEAKS: false
-          VALIDATE_HTML: false
-          VALIDATE_JAVASCRIPT_STANDARD: false
-          VALIDATE_JSCPD: false
-          VALIDATE_NATURAL_LANGUAGE: false
-          VALIDATE_SHELL_SHFMT: false
-          VALIDATE_XML: false