Update README.md

Author: TraceLD

README.md

@@ -7,4 +7,4 @@ GitHub User Language Breakdown (github-user-languages) shows a breakdown of lang
 It's very simple. Just head on to [this website](https://github-user-language-breakdown.herokuapp.com/), enter your GitHub username (profile name) and wait for the chart to appear.
 
 ## TODO
-[See TODO](https://github-user-language-breakdown.herokuapp.com/)
+[See TODO](https://github.com/TraceLD/github-user-languages/blob/master/TODO)