Update index.md

Author: Anas-redi

lesson1/index.md

@@ -55,7 +55,6 @@ Example CV Websites:
 - <https://ethanmarcotte.com/>
 - <https://laurieontech.com/>
 - <https://rachelandrew.co.uk/>
-- Example of the checkpoint website
 - An example [student website](https://julietchuks.github.io/Portfolio/) presented during the [demo day](https://youtu.be/upP5NuMLCGU?t=146) in 2020 Spring semester
 
 ETA: 30min