Fix again

docker-compose.yml

@@ -1,12 +1,12 @@
-version: '3.4'
+version: '3.4'
-
+
-services:  
+services:
-  http-echo:
+  http-echo:
-    build:
+    build:
-      content: ./
+      context: ./
-      dockerfile: httpecho.Dockerfile
+      dockerfile: httpecho.Dockerfile
-    expose:
+    expose:
-      - 8080
+      - 8080
-    environment:
+    environment:
-      - VIRTUAL_PORT=8080
+      - VIRTUAL_PORT=8080
       - VIRTUAL_HOST=${HOST}