Merge pull request #68 from kokurate/master

Remove obsolete course content

Author: infoslack

README.md

@@ -184,8 +184,6 @@ Table of Contents
 
 ## Courses
 
-   * https://www.elearnsecurity.com/course/web_application_penetration_testing/ eLearnSecurity Web Application Penetration Testing
-   * https://www.elearnsecurity.com/course/web_application_penetration_testing_extreme/ eLearnSecurity Web Application Penetration Testing eXtreme
    * https://www.offensive-security.com/information-security-training/advanced-web-attack-and-exploitation/ Offensive Security Advanced Web Attacks and Exploitation (live)
    * https://www.sans.org/course/web-app-penetration-testing-ethical-hacking Sans SEC542: Web App Penetration Testing and Ethical Hacking
    * https://www.sans.org/course/advanced-web-app-penetration-testing-ethical-hacking Sans SEC642: Advanced Web App Penetration Testing and Ethical Hacking