Add torrent client and libretorrent to android torrent client comparison

[noughtmare]

I don't know where the github repo is for the torrent app comparison website, so I'm posting this here.

I think it would be only fair to add the open source competitors to your comparison:

• libretorrent
• torrent client

[TuxPaper]

You can find the comparison page in https://github.com/BiglySoftware/BiglyBT-Android/blob/master/docs/

My methodology for adding apps is rather simple -- search for 'torrent' on Google Play and make sure the Top 5 are compared on the page. But, I can see how it makes sense to include libreTorrent and Torrent Client, for those people who only install FOSS.

I'll try to add one or both the next time I get around to updating the comparisons, but if you want to add them before that, you are more than welcome to create a pull request :)