* rename php-fpm dockerfile to simple naming

* update docker-compose example with modified dockerfile name in php-fpm versions services

docker-compose.yml.example

@@ -6,19 +6,19 @@ services:
       file: docker-compose.base.yml
       service: nginx
 
-  php-fpm73:
+  php73:
     extends:
       file: docker-compose.base.yml
       service: php-fpm
     build:
-      context: ./dockerfiles/php-fpm73
+      dockerfile: php73.Dockerfile
 
-  php-fpm74:
+  php74:
     extends:
       file: docker-compose.base.yml
       service: php-fpm
     build:
-      context: ./dockerfiles/php-fpm74
+      dockerfile: php74.Dockerfile
 
   workspace73:
     extends:
@@ -59,3 +59,6 @@ services:
     extends:
       file: docker-compose.base.yml
       service: redis
+
+volumes:
+  database:

dockerfiles/php-fpm/php73.Dockerfile

@@ -1,4 +1,4 @@
 # syntax = edrevo/dockerfile-plus
 FROM php:7.3-fpm
 
-INCLUDE+ ./php-fpm.base.Dockerfile
+INCLUDE+ ./php.base.Dockerfile

dockerfiles/php-fpm/php74.Dockerfile

@@ -1,4 +1,4 @@
 # syntax = edrevo/dockerfile-plus
 FROM php:7.4-fpm
 
-INCLUDE+ ./php-fpm.base.Dockerfile
+INCLUDE+ ./php.base.Dockerfile