HTML files will open in your default browser.
open-html-in-browser:open
No keymap by default.
edit ~/.atom/keymap.cson
'atom-text-editor[data-grammar~="html"]':'ctrl-shift-q': 'open-html-in-browser:open''.tree-view':'shift-o': 'open-html-in-browser:selected-entry'
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.