ci(docs): add markdownlint and link checker workflow

Author: muhittincamdali

.github/workflows/docs.yml

@@ -0,0 +1,34 @@
+name: Docs Quality
+
+on:
+  push:
+    branches: [ "main", "master" ]
+  pull_request:
+    branches: [ "main", "master" ]
+
+jobs:
+  markdown:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Markdownlint
+        uses: actionshub/markdownlint@main
+        with:
+          filesToIgnore: |
+            **/.build/**
+            **/Pods/**
+            **/Carthage/**
+            **/.swiftpm/**
+            **/DerivedData/**
+            **/node_modules/**
+            **/vendor/**
+  linkcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check links
+        uses: lycheeverse/lychee-action@v1
+        with:
+          args: --exclude "img.shields.io|starchart.cc" --verbose --no-progress "**/*.md"
+        env:
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}