fix markdown lint on CI (#114)

Reviewed-on: https://gitea.com/gitea/awesome-gitea/pulls/114
Reviewed-by: silverwind <silverwind@noreply.gitea.io>

.gitea/workflows/lint.yml

@@ -8,7 +8,8 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v3
+      - name: install markdownlint-cli
+        run: npm install -g markdownlint-cli
       - name: lint
-        uses: https://github.com/articulate/actions-markdownlint@v1
-        with:
-          files: '**/*.md'
+        run: markdownlint '**/*.md'