add github action

Signed-off-by: Matthew Sawatzky <[email protected]>

.github/workflows/pr.yml

@@ -0,0 +1,18 @@
+name: Marty Build Status
+
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - edited
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Build the Docker image
+        run: docker build .
+