Update CONTRIBUTING.md

Author: aawnu

CONTRIBUTING.md

@@ -9,7 +9,7 @@ I understand that sometimes you need add/update/delete code otherwhere in the co
 This is why my test always merges master in to ensure that your code stays functional/executable during development.
 
 Please adhere these pointers:
-* Support selected PHP Verisons | Ref: [Master/Package.json](https://github.com/AlexWestergaard/php-ga4/blob/master/composer.json)
+* Support selected PHP Verisons | Ref: [Master/Composer.json](https://github.com/AlexWestergaard/php-ga4/blob/master/composer.json)
 * Pass current tests without modification; unless clearly explaining why the change is necessary/required | `> vendor/bin/phpunit`
 * PHPUnit tests should confidently ensure that code doesn't fail/error in unwated ways (eg. E_WARNINGS or missing paranthesis)
 * At least try to follow PSR<1, 4, 12> and \*PSR<5, 10> for documentation | Ref: [PHP FIG.](https://www.php-fig.org/psr/)