Forgot to add table.

QtRoS · QtRoS · commit 745aa9d8f1ce · 2016-03-25T09:13:31.000+03:00
diff --git a/extras/courses.md b/extras/courses.md
@@ -129,6 +129,7 @@ Courses | Duration | Effort
 ### Computer Graphics
 
 ### Artificial Intelligence
+:-- | :--: | :--:
 [Discrete Optimization](https://www.coursera.org/course/optimization)| 9 weeks | 10-20 hours/week
 
 ### Machine Learning
