update readme

Author: erickhun

README.md

@@ -1,3 +1,14 @@
 # buffer-php-logger
 
 PHP logger for all Buffer services
+
+## Requirements:
+1 - Install composer by following [those steps](https://getcomposer.org/download/)
+2 (optional) - `mv composer.phar /usr/local/bin/composer`
+
+## Install the project
+
+```
+# This will install all the dependencies
+composer install
+```