README: invalid repository link to rowserrcheck lnter

[ifraixedes]

README links the rowserrcheck linter to a wrong URL repository.

Actual: https://github.com/jingyugao/rowserr
Correct: https://github.com/jingyugao/rowserrcheck

I tried to find where I have to update this for sending a PR, but I haven't been able to find it.

[tpounds]

@ifraixedes Thanks for the report! I've fixed this in #933.