URL auditor with URL fixes

.brokignore

@@ -0,0 +1,15 @@
+http://127.0.0.1
+http://example.com
+http://example.org
+http://github.com
+http://localhost
+http://www.example.com
+http://www.example.org
+https://127.0.0.1
+https://example.com
+https://example.org
+https://github.com
+https://localhost
+https://twitter.com/intent/follow?screen_name=Salt_Project_OS
+https://www.example.com
+https://www.example.org

.github/workflows/url-check.yml

@@ -0,0 +1,38 @@
+name: URL validator
+
+on: [push, pull_request]
+
+jobs:
+  Pre-Commit:
+    name: Run brok Against Salt
+
+    runs-on: ubuntu-latest
+
+    container:
+      image: debian:buster-slim
+
+    steps:
+
+    - name: Install System Deps
+      run: |
+        apt-get update
+        apt-get install -y wget libtinfo5
+    - uses: actions/checkout@v2
+
+    - name: Get Date
+      id: get-date
+      run: |
+        echo "::set-output name=date::$(/bin/date -u "+%Y%m")"
+      shell: bash
+    - uses: actions/cache@v2
+      with:
+        path: .brokdb
+        key: ${{ hashFiles('.github/workflows/url-check.yml') }}-${{ hashFiles('.brokignore') }}-${{ steps.get-date.outputs.date }}
+
+    - name: Install brok
+      run: |
+        wget https://github.com/smallhadroncollider/brok/releases/download/1.1.0/brok-1.1.0_x86-64-linux.deb
+        dpkg -i brok-1.1.0_x86-64-linux.deb
+    - name: Run brok
+      run: |
+        brok --ignore $(cat .brokignore) $(find . -type f -name "*.rst") $(find . -type f -name "*.md") > /dev/null

doc/ref/file_server/backends.rst

@@ -83,8 +83,8 @@ served from the ``first`` repository.
 .. code-block:: yaml
 
     gitfs_remotes:
-      - https://mydomain.tld/repos/first.git
-      - https://mydomain.tld/repos/second.git
+      - https://example.com/repos/first.git
+      - https://example.com/repos/second.git
 
 .. note::