Add Wiki Build

.github/workflows/build-wiki.yml

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+name: 'Build Wiki'
+
+on: 
+  repository_dispatch:
+    types: [build-wiki]
+  workflow_dispatch:
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+    - name: Checkout wiki repo
+      uses: actions/checkout@v3
+      with:
+        repository: NLog/NLog.wiki
+        path: _wiki/wiki-src
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.11'
+    - run: pip install -r _wiki/requirements.txt
+    - run: mkdocs build --config-file _wiki/mkdocs.yml
+    - name: Commit files
+      run: |
+        cd ./wiki
+        git config --local user.email "action@github.com"
+        git config --local user.name "GitHub Action"
+        git add ./
+        git commit -m "Build Wiki" -a
+    - name: Push changes
+      uses: ad-m/github-push-action@master
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        branch: master
+        directory: ./wiki

_wiki/mkdocs.yml

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+site_name: NLog Wiki
+site_url: https://nlog-project.org/wiki
+repo_url: https://github.com/NLog/NLog/wiki
+docs_dir: wiki-src
+site_dir: ../wiki
+strict: false
+plugins:
+  - search
+  - ezlinks
+  - github-wiki-edit-url
+  - redirects:
+      redirect_maps:
+        index.md: Home.md
+theme:
+  name: readthedocs
+  logo: https://nlog-project.org/images/NLog-logo-only_small.png

_wiki/requirements.txt

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+mkdocs
+mkdocs-ezlinks-plugin
+mkdocs-github-wiki-edit-url
+mkdocs-redirects