Testing the [handling of various types of link markup.
Testing [the] handling] of] various] types](//gist.github.com) of link markup.
Testing [the ]handling] of] various] types](//gist.github.com) of link markup.
Testing the [handling of] various types](http://gist.github.com) of link markup.
Testing the handling of [various] types of link markup.
Testing the] handling of various types of [link markup.
[Testing [the [handling [of [various types]]](//gist.github.com) of link markup.
Testing the** handling of [various types](//gist.github.com "Mismatch) of link markup.
Testing **the handling of [various types](//gist.github.com Mismatch") of link markup.
Testing **the handling of various** types of link markup.