Pls. add David Farrell's Perl6 "one-liner" repository...

Hi, I really enjoyed your PerlCon talk. I checked out `cheat.sh` and it works great.

https://www.youtube.com/watch?v=xSm9ZA8IIGM

One thing I noticed is... while your overview page indicates that `cheat.sh` has support for Perl6 "one-liners", when I try to obtain information, I never get any code back. Instead, cheat.sh gives me a summary of some (older?) problems users were having with Readline and/or NativeCall:

```
mbook:~ homedir$ curl cht.sh/perl6/1line/
mbook:~ homedir$ curl cht.sh/perl6/1line/:list | less -R
```

Could you please add @dnmfarrell David Farrell's repository of "Perl6 one-liners" ??

https://github.com/dnmfarrell/Perl6-One-Liners

Thank you!

Start by checking how the existing Perl6 one-liner entry is represented in cheat.sh and compare it with the linked Perl6-One-Liners repository. Verify the requested content and integration path against curl cht.sh/perl6/1line/ and its :list form. Done means those endpoints return the requested one-liner information rather than the reported Readline/NativeCall summary.

Written by the indexing model from the issue text.