You can find the HTML.tmLanguage file by going to /Applications , and then right-click on Sublime Text 2.app and select "Show Package Contents". Then go to /Contents/Mac OS/Pristine Packages/ .
Inside this folder, you should see a collection of sublime-package files. Find HTML.sublime-package and rename it to HTML.zip . After that, you can extract the archive, like any other mail folder, and inside you should find all the tips related to the Sublime HTML package, including the HTML.tml language.
Be sure to compress again and then rename the folder back to the .sublime-package after making the changes!
EDIT: Since then I admitted that this is not true, Pristine Packages are never edited. Follow Boundincode's answer!
source share