add ShardGuard to projects list

[aadityare]

add https://github.com/JustinCappos/ShardGuard to projects list

[JustinCappos]

@annmalavet can you take a cut at this?

[Marc-cn]

Today, we added ShardGuard to the projects list. @JustinCappos @annmalavet Please let me know if you'd like to include anything else (e.g. a logo).