Speed up gem installs by not building the docs

You know what it's like - you install a gem and are confronted by minutes of this:

Installing ri documentation for bananas-0.4.9...
Building YARD (yri) index for bananas-0.4.9...
Installing RDoc documentation for bananas-0.4.9..

I never look at the docs on my local machine, I either read the source, or look up the docs online. So why bother installing all those docs?

Edit your ~/.gemrc file and add the following lines:

install: --no-rdoc --no-ri --yri
update: --no-rdoc --no-ri --yri

Boom - no more updating your docs - installing gems just became RIDICULOUSLY FAST.