[addons_zz]

It is a setting from Sublime Text. You can enable it by going on the menu: `Preferences -> Settings` and adding this the right side panel:

	"auto_match_enabled": true,

There is also this post on SuperUser asking about how to disable it, i.e., the opposite of your question: https://superuser.com/questions/392200/turn-off-parenthesis-matching-in-sublime-text-2