docs: Update link to ShouldJS repo (#8191)
docs: Update link to ShouldJS repo (#8191)

_This is my first and probably only contribution to this repo. Hope this helps._
ide/jest,ide/jest,bookman25/jest,facebook/jest,ide/jest,facebook/jest,cpojer/jest,bookman25/jest,cpojer/jest,bookman25/jest,facebook/jest,cpojer/jest