EDIT: this answer assumed @InviS is using SVN, but I've since learned he's using GIT.
You need to install the SVN package:
- if you haven't done so already, install the Package Control package (it's like apt-get for sublime packages). Instructions are here: http://wbond.net/sublime_packages/package_control/installation
- use sublime's
Command Palette to run
Install Package, then search for
SVN and hit enter to install it (takes a few moments, you'll get an instructions screen when it's done)
Once SVN is installed, you can now use the Command Palette to run various commands, for example type
svci to run
Blame is hidden behind the
SVN: Other... command, so you need to type something like
svo[enter]bla[enter] to run it.
You can customise sublime to create additional ways of executing the command, but that'd be a separate question.