Update readme.md

Author: GuiAllen

readme.md

@@ -58,3 +58,7 @@ These are meant to be 1:1 copies of what is done in the video. If you found a be
 The starter files + solutions will be updated if/when the videos are updated.
 
 Thanks!
+
+## Preview
+
+  * [01 - JS Drum Kit](https://guiallen.github.io/JavaScript30/01%20-%20JavaScript%20Drum%20Kit/index-FINISHED.html)