corrected xdebug version in php 7.2

Author: Raaghu

7.2/Dockerfile

@@ -1,6 +1,6 @@
 FROM phpplatform/php-apache:7.2
 
-RUN yes | pecl install xdebug \
+RUN yes | pecl install xdebug-2.6.0beta1 \
     && echo "zend_extension=$(find /usr/local/lib/php/extensions/ -name xdebug.so)" > /usr/local/etc/php/conf.d/xdebug.ini \
     && echo "xdebug.remote_enable=on" >> /usr/local/etc/php/conf.d/xdebug.ini \
     && echo "xdebug.remote_autostart=off" >> /usr/local/etc/php/conf.d/xdebug.ini

README.md

@@ -4,9 +4,9 @@ This repo contains DockerFiles to build docker images containing software compon
 
 The Images are built in this order
 
-    - docker-library/php is forked into PHPPlatform/docker-php-apache in github
-    - created new branches to support older version of php in PHPPlatform/docker-php-apache
-    - phpplatform/php-apache docker images are automatically built in docker hub , linked to PHPPlatform/docker-php-apache github repo
-    - This repo uses images from phpplatform/php-apache to add Composer and Xdebug
-    - docker images are built automatically at phpplatform/php-apache-composer-xdebug in Docker HUb
+- docker-library/php is forked into PHPPlatform/docker-php-apache in github
+- created new branches to support older version of php in PHPPlatform/docker-php-apache
+- phpplatform/php-apache docker images are automatically built in docker hub , linked to PHPPlatform/docker-php-apache github repo
+- This repo uses images from phpplatform/php-apache to add Composer and Xdebug
+- docker images are built automatically at phpplatform/php-apache-composer-xdebug in Docker HUb