Added test workflow

.github/workflows/test.yml

@@ -0,0 +1,18 @@
+name: Greet Everybody
+# This workflow is triggered on pushes to the repository.
+on: [push]
+
+jobs:
+  build:
+    # Job name is Greeting
+    name: Greeting
+    # This job runs on Linux
+    runs-on: ubuntu-latest
+    steps:
+    # This step uses the hello-world-action stored in this workflow's repository.
+    - uses: ./hello-world-action
+      with:
+        who-to-greet: 'Octocat'
+      id: hello
+    # This step prints the time.
+    - run: echo "The time was ${{ steps.hello.outputs.time }}"