Updated README to reflect GitHub repository URL
Updated README to reflect GitHub repository URL

spring-projects/spring-social-twitter,pagefreezer/spring-social-twitter,hudsonmendes/spring-social-twitter,wilkinsona/spring-social-twitter,spring-projects/spring-social-twitter,wilkinsona/spring-social-twitter,pagefreezer/spring-social-twitter,stanly3690/awt,pkdevbox/spring-social-twitter,pkdevbox/spring-social-twitter,stanly3690/awt,ukyovirgden/spring-social-twitter,hudsonmendes/spring-social-twitter