Corrects capitalization of Lua
Corrects capitalization of Lua

Though I disagree with the frowny face, it seems to be in good fun and I'll leave it be. The capitalization, however, is simply wrong and should be corrected in accordance with [Lua's about page](http://www.lua.org/about.html).
Shroder/essential-javascript-links,Shroder/essential-javascript-links,nucliweb/essential-javascript-links,nucliweb/essential-javascript-links