add Memcached support to the readme file

README.md

@@ -110,10 +110,11 @@ Running a virtual Container is much faster than running a full virtual Machine.
 
 - PHP (7.0 - 5.6 - 5.5)
 - NGINX
-- Redis
 - MySQL
 - PostgreSQL
 - MariaDB
+- Redis
+- Memcached
 - Beanstalkd
 - Beanstalkd Console
 - Data Volume
@@ -189,7 +190,7 @@ Note: you can choose your own combination of software's (containers), another ex
 docker-compose up -d   php nginx beanstalkd postgres
 ```
 
-Supported Containers: `nginx`, `mysql`, `redis`, `postgres`, `mariadb`, `beanstalkd`, `beanstalkd-console`, `data`, `php`.
+Supported Containers: `nginx`, `mysql`, `redis`, `postgres`, `mariadb`, `Memcached`, `beanstalkd`, `beanstalkd-console`, `data`, `php`.
 
 <br>
 3 - Open your browser and visit your `{Docker-IP}` address (`http://xxx.xxx.xxx.xxx`).

php/Dockerfile

@@ -1,3 +1,4 @@
+# You can change the PHP version from here. After changing the PHP version, check the Memcached section below because it replies on PHP 7.
 FROM php:7.0-fpm 
 
 MAINTAINER Mahmoud Zalt <mahmoud@zalt.me>
@@ -5,7 +6,8 @@ MAINTAINER Mahmoud Zalt <mahmoud@zalt.me>
 ADD ./laravel.ini /usr/local/etc/php/conf.d
 ADD ./laravel.pool.conf /usr/local/etc/php-fpm.d/
 
-RUN apt-get update && apt-get install libpq-dev -y \
+RUN apt-get update && apt-get install \
+	libpq-dev -y \
     curl \
     libmemcached-dev
 
@@ -14,7 +16,7 @@ RUN docker-php-ext-install \
     pdo_mysql \
     pdo_pgsql
 
-#Installing memcached for php 7 is a bit trickier
+# Install Memcached for php 7
 RUN curl -L -o /tmp/memcached.tar.gz "https://github.com/php-memcached-dev/php-memcached/archive/php7.tar.gz" \
     && mkdir -p /usr/src/php/ext/memcached \
     && tar -C /usr/src/php/ext/memcached -zxvf /tmp/memcached.tar.gz --strip 1 \