Create say_hello.yml

.github/workflows/say_hello.yml

@@ -0,0 +1,19 @@
+name: 'Simply saying hello'
+on: [push]
+
+jobs:
+  say-hello:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      - name: Run basic commands
+        run: |
+          pwd
+          ls
+          df
+
+      - name: Say hello
+        run: |
+          echo 'Hello World!'