Updated How to install section

Author: Petr Knap

README.md

@@ -134,21 +134,10 @@ if (date('w') == DayOfWeekEnum::FRIDAY()->getValue()) {
 
 ## How to install
 
-Run `composer require petrknap/php-enum` or merge this JSON code with your project `composer.json` file manually and run `composer install`. Instead of `dev-master` you can use [one of released versions].
-
-```json
-{
-    "require": {
-        "petrknap/php-enum": "dev-master"
-    }
-}
-```
-
-Or manually clone this repository via `git clone https://github.com/petrknap/php-enum.git` or download [this repository as ZIP] and extract files into your project.
+Run `composer require petrknap/php-enum` in your project directory. Or manually clone this repository via `git clone https://github.com/petrknap/php-enum.git`. Or download [this repository as ZIP] and extract files into your project.
 
 
 
 [Petr Knap]:http://petrknap.cz/
 [Enumerated type - Wikipedia, The Free Encyclopedia]:https://en.wikipedia.org/w/index.php?title=Enumerated_type&oldid=701057934
-[one of released versions]:https://github.com/petrknap/php-enum/releases
 [this repository as ZIP]:https://github.com/petrknap/php-enum/archive/master.zip