Update urls to match github

Author: theRoughCode

README.md

@@ -35,6 +35,6 @@ For CS-related courses, we will be using Google's [Code-Prettify](https://github
 
 ## Contributors [![All Contributors](https://img.shields.io/badge/all_contributors-5-orange.svg?style=flat-square)](#contributors)
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-| [<img src="https://avatars1.githubusercontent.com/u/3231840?v=4" width="100px;"/><br /><sub><b>Clayton Halim</b></sub>](http://claytonhalim.me)<br />[💻](https://github.com/theRoughCode/Course-Notes/commits?author=clayton-halim "Code") | [<img src="https://avatars1.githubusercontent.com/u/20635630?v=4" width="100px;"/><br /><sub><b>Anamaya Garodia</b></sub>](http://www.anamayagarodia.me)<br />[💻](https://github.com/theRoughCode/Course-Notes/commits?author=anamayagarodia "Code") | [<img src="https://avatars1.githubusercontent.com/u/18239310?v=4" width="100px;"/><br /><sub><b>Tate Lok-Chun Cheng</b></sub>](http://tate1010.me)<br />[💡](https://github.com/theRoughCode/Course-Notes/commit/a15cc651de09e008fca465c05d23c8caf95713a9 "Examples") | [<img src="https://avatars0.githubusercontent.com/u/19877964?v=4" width="100px;"/><br /><sub><b>Hassaan Sami</b></sub>](https://github.com/hsami10)<br />[🐛](https://github.com/theRoughCode/Course-Notes/issues?q=author%3Ahsami10 "Bug reports") | [<img src="https://avatars0.githubusercontent.com/u/5943822?v=4" width="100px;"/><br /><sub><b>Domingo</b></sub>](https://github.com/domingohui)<br />[💻](https://github.com/theRoughCode/Course-Notes/commits?author=domingohui "Code") |
+| [<img src="https://avatars1.githubusercontent.com/u/3231840?v=4" width="100px;"/><br /><sub><b>Clayton Halim</b></sub>](https://github.com/clayton-halim)<br />[💻](https://github.com/theRoughCode/Course-Notes/commits?author=clayton-halim "Code") | [<img src="https://avatars1.githubusercontent.com/u/20635630?v=4" width="100px;"/><br /><sub><b>Anamaya Garodia</b></sub>](https://github.com/anamayagarodia)<br />[💻](https://github.com/theRoughCode/Course-Notes/commits?author=anamayagarodia "Code") | [<img src="https://avatars1.githubusercontent.com/u/18239310?v=4" width="100px;"/><br /><sub><b>Tate Lok-Chun Cheng</b></sub>](https://github.com/tate1010)<br />[💡](#example-tate1010 "Examples") | [<img src="https://avatars0.githubusercontent.com/u/19877964?v=4" width="100px;"/><br /><sub><b>Hassaan Sami</b></sub>](https://github.com/hsami10)<br />[🐛](https://github.com/theRoughCode/Course-Notes/issues?q=author%3Ahsami10 "Bug reports") | [<img src="https://avatars0.githubusercontent.com/u/5943822?v=4" width="100px;"/><br /><sub><b>Domingo</b></sub>](https://github.com/domingohui)<br />[💻](https://github.com/theRoughCode/Course-Notes/commits?author=domingohui "Code") |
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 <!-- ALL-CONTRIBUTORS-LIST:END -->