Added installation-guide

Author: peter-davido

README.md

@@ -1,2 +1,35 @@
 # laravel-php-code-analysis-hook
 A GIT pre-commit hook for running php code sniffer, php mess detector and phpunit before a commit can be accepted.
+
+## Installation
+Add the repository to your composer.json
+
+```
+"repositories": [
+     {
+         "url": "https://github.com/coding-pioneers/laravel-php-code-analysis-hook.git",
+         "type": "git"
+     } ]
+```
+Add the following line to your composer.json to the require-dev-section
+```
+"coding-pioneers/laravel-php-code-analysis-hook": "@dev"
+```
+Then run `composer update`
+
+To add the new git-hook to your repository run the following command
+```
+vendor/bin/symlink-git-hooks-to-hub  
+```
+Now your source code is being checked before the commit.
+
+##Uninstall
+Remove the link to the pre-commit-hook with the following command
+```
+vendor/bin/remove-git-hook
+```
+Then remove the following line from your composer.json
+```
+"coding-pioneers/laravel-php-code-analysis-hook": "@dev"
+```
+Then run `composer update`