hugo, set the app name in env file.

Config/HugoExample/docker-compose.example.yml

@@ -3,7 +3,7 @@
 
 services:
   app:
-    container_name: hugo
+    container_name: $APP_NAME
     build:
       context: ./
     image: hyperling/hugo:$BRANCH

Config/HugoExample/example.env

@@ -5,6 +5,8 @@
 #
 COMPOSE_BAKE=true
 
+APP_NAME=hugo
+
 #
 ## Git Website Repository ##
 #