👷 feat(CI): add yaml lint to the CI (#3)

* 👷 feat(CI): add yaml lint to the CI

* ⚗️ test: check the functionality of yaml linter

* ⚗️ test: remove empty line

* 💚 refactor: trigger the CI on push on main branch

* 🔧 feat: add configuration for yamllint

.github/workflows/yaml_lint.yaml

@@ -0,0 +1,32 @@
+name: YAML Format Check
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'roadmap.yaml'
+  pull_request:
+    branches:
+      - '**'
+    paths:
+      - 'roadmap.yaml'
+
+jobs:
+  yaml-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: '3.x'
+
+      - name: Install yamllint
+        run: pip install yamllint
+
+      - name: Run yamllint
+        run: yamllint roadmap.yaml
+

.yamllint

@@ -0,0 +1,4 @@
+rules:
+  empty-lines:
+    max: 1
+