feat: add GitHub Actions workflows for link checking and markdown linting

Author: DMsuDev

.github/workflows/link-checker.yml

@@ -0,0 +1,26 @@
+name: Link Checker
+
+on:
+  push:
+    branches: [master]
+    paths:
+      - "**.md"
+  pull_request:
+    branches: [master]
+    paths:
+      - "**.md"
+  workflow_dispatch:
+
+jobs:
+  check-links:
+    name: Check Markdown Links
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Markdown Link Check
+        uses: gaurav-nelson/github-action-markdown-link-check@v1
+        with:
+          use-quiet-mode: "yes"
+          use-verbose-mode: "yes"

.github/workflows/markdown-lint.yml

@@ -0,0 +1,26 @@
+name: Markdown Lint
+
+on:
+  push:
+    branches: [master]
+    paths:
+      - "**.md"
+  pull_request:
+    branches: [master]
+    paths:
+      - "**.md"
+  workflow_dispatch:
+
+jobs:
+  lint:
+    name: Lint Markdown Files
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Markdown Lint
+        uses: DavidAnson/markdownlint-cli2-action@v19
+        with:
+          globs: |
+            **/*.md

.markdownlint.yaml

@@ -0,0 +1,17 @@
+# markdownlint configuration
+# https://github.com/DavidAnson/markdownlint
+default: true
+
+# Allow long lines (common in README tables, links, etc.)
+MD013: false
+
+# Allow duplicate headings in different sections
+MD024:
+  siblings_only: true
+
+# Allow inline HTML (useful for badges, images, etc.)
+MD033:
+  allowed_elements: [img, a, br, hr, details, summary, b, td, table, tr, th]
+
+# Allow bare URLs
+MD034: false