add a README tutorial on the mvc/overview example

Former-commit-id: c563c4f1ffa98705829e14b189a6976c3a6aa898

_examples/mvc/overview/docker-compose.yml

@@ -0,0 +1,16 @@
+version: '3.1'
+
+services:
+  app:
+    build: .
+    ports:
+      - 8080:8080
+    environment:
+      PORT: 8080
+      ENVIRONMENT: development
+    restart: on-failure
+    healthcheck:
+        test: ["CMD", "curl", "-f", "http://localhost:8080/ping"]
+        interval: 30s
+        timeout: 10s
+        retries: 5