feat(docs): lint changed docs files

.github/workflows/lint.yml

@@ -225,6 +225,61 @@ jobs:
         shell: bash
         run: cargo make check_contracts
 
+  check_docs_updated:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v3
+
+      - name: Setup node
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+
+      - name: Installing jsonschema2md
+        run: npm install -g @adobe/jsonschema2md
+
+      - name: Cache cargo registry
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            ~/.cargo/bin
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
+      - name: Setup rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 1.64
+          default: true
+          override: true
+
+      - name: Install cargo make
+        uses: davidB/rust-cargo-make@v1
+
+      - name: Generate schema
+        run: cargo make schema
+
+      - name: Generate documentations
+        run: cargo make generate_docs
+
+      - name: Verify changed docs files
+        uses: tj-actions/verify-changed-files@v12
+        id: verify-changed-docs-files
+        with:
+          files: |
+            docs
+
+      - name: Run step only when files change.
+        if: steps.verify-changed-docs-files.outputs.files_changed == 'true'
+        run: |
+          echo "❌ Documentation files has been updated."
+          echo "  Changed files : ${{ steps.verify-changed-files.outputs.changed_files }}"
+          echo "Please generate docs using `cargo make generate_docs` then commit this new documentation."
+          exit 1
+
   lint-branch-name:
     runs-on: ubuntu-22.04
     if: github.actor != 'dependabot[bot]' && github.event_name == 'pull_request' && (github.event.action == 'opened' || github.event.action == 'reopened')