Merge pull request #1269 from ziadoz/alexkart-patch-2

Change url for owasp zap project and add a link to owasp itself

README.md

 * [Halite](https://paragonie.com/project/halite) - A simple library for encryption using [libsodium](https://github.com/jedisct1/libsodium).
 * [HTML Purifier](https://github.com/ezyang/htmlpurifier) - A standards compliant HTML filter.
 * [Optimus](https://github.com/jenssegers/optimus) - Id obfuscation based on Knuth's multiplicative hashing method.
+* [OWASP](https://owasp.org/) - Explore the world of cyber security.
 * [PHPGGC](https://github.com/ambionics/phpggc) - A library of PHP unserializable payloads along with a tool to generate them.
 * [PHP Encryption](https://github.com/defuse/php-encryption) - Secure PHP Encryption Library.
 * [PHPSecLib](https://phpseclib.sourceforge.net) - A pure PHP secure communications library.
 * [random_compat](https://github.com/paragonie/random_compat) - PHP 5.x support for `random_bytes()` and `random_int()`
 * [Symfony Security Monitoring](https://security.symfony.com/) - A web tool to check your Composer dependencies for security advisories, previously known as "SensioLabs Security Check".
 * [SQLMap](https://github.com/sqlmapproject/sqlmap) - An automatic SQL injection and database takeover tool.
-* [Zap](https://github.com/OWASP/www-project-zap) - An integrated penetration testing tool for web applications.
+* [Zap](https://github.com/zaproxy/zaproxy) - An integrated penetration testing tool for web applications.
 
 ### Passwords
 *Libraries and tools for working with and storing passwords.*