fixup! Add Example

Author: ilyar

example/app/.gitkeep

@@ -7,3 +7,4 @@ UMI_DB_PASSWORD=umi
 UMI_TEMPLATE=demodizzy
 
 UMI_DOMAIN=localhost
+UMI_KEY=%KEY%

example/default.env

@@ -10,7 +10,7 @@ services:
       - db
     volumes:
       - "./core:/var/www/html"
-      - "./etc/php-fpm/php.ini:/usr/local/etc/php/php.ini"
+      - "./etc/php/php.ini:/usr/local/etc/php/php.ini"
 
   db:
     image: mysql:5.5