You can also look up for these other topics:
Framework
Coding Standards
Boilerplate
CMS
Tool
Security
Hacktoberfest
Image optimization / compression library. This library is able to optimize png, jpg and gif files in very easy and handy way. It uses optipng, pngquant, pngcrush, pngout, gifsicle, jpegoptim and jpegt
psliwa:stuck_out_tongue: The GhostBuster of your exception page!
jolicode