Typo fix. [doc] [ci skip]
Typo fix. [doc] [ci skip]

I should find a way to run the specs only for docs.

rrosenblum/rubocop,tdeo/rubocop,bbatsov/rubocop,rrosenblum/rubocop,tejasbubane/rubocop,maxjacobson/rubocop,jmks/rubocop,maxjacobson/rubocop,tdeo/rubocop,jmks/rubocop,maxjacobson/rubocop,jmks/rubocop,rrosenblum/rubocop,tdeo/rubocop,bbatsov/rubocop,tejasbubane/rubocop,tejasbubane/rubocop