Set up a hello world Github Action (#10)

Author: sachinh-amazon

.github/workflows/sachinh-test.yml

@@ -0,0 +1,8 @@
+name: hello-world
+on: push
+jobs:
+  my-job:
+    runs-on: ubuntu-latest
+    steps:
+      - name: my-step
+        run: echo "Hello World!"