add workflows

.gitea/workflows/demo.yml

@@ -0,0 +1,13 @@
+name: Test
+run-name: ${{ gitea.actor }} greets Habr!
+on: [push]
+
+jobs:
+  print-content:
+    name: Print content
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v4
+      - name: list directory contents
+        run: ls -la