Update README.md

Author: siyuanZHANG01

README.md

@@ -100,6 +100,7 @@ https://com-480-data-visualization.github.io/DataVision2/
 ## Milestone 3 (29th May, 5pm)
 
 Please view the source code and readme file under /docs directory.
+
 🌐 The webpage is available at:
 https://com-480-data-visualization.github.io/DataVision2/