fix the error when using 'hexo g' in v2.8.1 by adding double quotes in yml files
error log:
reason: 'incomplete explicit mapping pair; a key node is missed', ....
Merge pull request #22 from AndriyLin/master

fix the error when using hexo 2.8.1
Merge branch 'master' of github.com:A-limon/pacman
use google cse