alterado a imagem do phpmyadmin para a correta

Author: emalherbi

.gitignore

@@ -12,15 +12,16 @@ db:
   ports:
     - "3306:3306"
   environment:
-    MYSQL_USER: root
     MYSQL_ROOT_PASSWORD: root
+    MYSQL_USER: root
     MYSQL_PASSWORD: root
 phpmyadmin:
-  image: corbinu/docker-phpmyadmin
+  image: phpmyadmin/phpmyadmin
   links:
     - db
   ports:
     - "8087:80"
   environment:
-    MYSQL_USERNAME: root
     MYSQL_ROOT_PASSWORD: root
+    MYSQL_USER: root
+    MYSQL_PASSWORD: root