Add cheat for documented but not visible negative and merged filters.

[jrafanie]

These are documented here but it's not obvious from github's user interface and some people may not know these things are possible.

[tiimgreen]

Thanks for your contribution @jrafanie, a few suggestions though. I think the first title should be called simply 'Filters' to avoid confusion. Also, I think the 'Merged pull requests filter' header is unnecessary and should just be put under the Filters title.

[tiimgreen]

@jrafanie any update on this? Would be nice to merge.

[jrafanie]

Thanks @tiimgreen, missed the prior notification, I'll submit your suggestions shortly.

[jrafanie]

@tiimgreen Fixed, also added the recent filtering by API status. Let me know if you want them squashed.

Thanks!

[tiimgreen]

@jrafanie looks good, just one last thing Read more about searching issues. is duplicated. Could you remove the first one?

[jrafanie]

Thanks @tiimgreen, updated.

[tiimgreen]

Awesome, thanks 👍

[jrafanie]

My pleasure, thank you! 😎