[thenerdfiles]

Odd. Upon reading the title I immediately thought:

    I'll respond first! with howdoi

There's also https://github.com/jpelton/vim/blob/master/plugin/HowDoI.vim.

[tartle]

that actually is howdoi, just wrapped, so that you don't need to leave the edited file in Sublime Text :)

[thenerdfiles]

Definitely. Less good than what you've created here.

Thank you!