Try pressing 'm' on github

[mtraven]

Not a very good UI if it requires a Hacker News story to let me know about it.

[callum85]

But you do now know about it. People telling each other about a hidden feature (via HN or whatever) is a common and valid way for non-essential features to be discovered.

If you designed UIs assuming that that sort of user-to-user education doesn't exist, you'd be forced occasionally to reject a potentially handy power-user feature on the basis that there's no good place to promote it without cluttering the design. Which would be a shame.

[ghshephard]

Discoverability isn't the be-all/end-all in User Interfaces.

[tcard]

It's just a shortcut, not essential. You have help links in each Markdown-capable textbox anyway.

[vgnet]

Press "?" for a list of all keyboard shortcuts ("?" also works on some Google properties).

[sjs]

Unless I've missed something "m" is missing from that help. Odd.

[code_scrapping]

I love the idea of treating web-sites more like applications. From a programmer's point of view - yes, keyboard should be a more utilized way of interacting with a web-site, beyond arrow-navigation and filling text-boxes.

[jnbiche]

Thank you for posting this; I can't tell you how many times I've had to google markdown cheat sheets while using github. This is a huge time saver.

[j0k3r]

I see people tapping every keys on their keyboard :)

[frytaz]

pressing 's' focus on search form ;)

[dfc]

This has been there since the announcement of GFM...

http://github.github.com/github-flavored-markdown/

Markdown Cheat Sheet

On Markdown-enabled portions of the site, press M on your keyboard to display a cheat sheet.

[mmahemoff]

I see. The lightbox content is actually in the page HTML if you view source.

[16s]

I thought it would let me make a comment like subversion and mercurial do.

[tutuca]

On github not git... git commit -m works like in svn btw.

[Fizzadar]

They'll soon need a list (displayed at all times) with all the different shortcuts around the site. Still, very nice idea :)