Update README.md

Fix typo, delete and fix broken links.

README.md

@@ -2,8 +2,6 @@
 
 Your challenge, if you wish to accept it (and we sure hope you will), is to optimize this online portfolio for speed! In particular, optimize the critical rendering path and make this page render as quickly as possible by applying the techniques you've picked up in the [Critical Rendering Path course](https://www.udacity.com/course/ud884).
 
-To get started, check out the repository, inspect the code,
-
 ### Getting started
 
 Some useful tips to help you get started:
@@ -61,5 +59,4 @@ Feeling uninspired by the portfolio? Here's a list of cool portfolios I found af
 * <a href="http://www.cullywright.com/">http://www.cullywright.com/</a>
 * <a href="http://yourjustlucky.com/">http://yourjustlucky.com/</a>
 * <a href="http://nicoledominguez.com/portfolio/">http://nicoledominguez.com/portfolio/</a>
-* <a href="http://www.roxannecook.com/">http://www.roxannecook.com/</a>
-* <a href="http://www.84colors.com/portfolio.html">http://www.84colors.com/portfolio.html</a>
+* <a href="http://www.84colors.com/work.html">http://www.84colors.com/work.html</a>