Readme formatting

README.md

@@ -1,6 +1,14 @@
-## Small library to generate unique private mac addresses
+# sikofitt/generate-mac
 
-### Usage
+### Small library to generate unique private mac addresses
+
+#### Install
+[composer](https://getcomposer.org)
+```bash
+composer require sikofitt/generate-mac
+```
+
+#### Usage
 ```php
 use Sikofitt\GenerateMac\Mac;
 
@@ -44,3 +52,13 @@ var_dump($addresses);
  *   );
  */
 ```
+
+#### Test
+
+```bash
+user@localhost:~/generate-mac$ vendor/phpunit
+```
+
+#### License
+
+[GPL-3.0](LICENSE)