Add a bit about acceptable indentation to the README.
Add a bit about acceptable indentation to the README.

Iamronan/sass,dg1dd1ngs/haml,schneems/sass,purcell/haml,jaroot32/sass,nicklima/sass,haml/haml,mislav/haml,danielfein/sass,uniba/hamldoc_ja,stanhu/haml,saper/sass,OrenBochman/sass,xzyfer/sass,cmpereirasi/sass,saper/sass,zaru/sass,14113/sass,JuanitoFatas/sass,tenderlove/sass,macressler/haml,tangposmarvin/sass,Nzaga/sass,rammy7219/sass,Andrey-Pavlov/sass,danielfein/sass,xzyfer/sass,keithpitty/haml,Ahnita/sass,lmetla/sass,Industrys/sass,srawlins/sass,baiyanghese/sass,DanteKaris/sass,MetaAshley/sass,Andrey-Pavlov/sass,rammy7219/sass,liquidmetal/sass,Galactix/sass,nickg33/sass,Nzaga/sass,DanteKaris/sass,askl56/sass,amitsuroliya/sass,Galactix/sass,nickg33/sass,dylannnn/sass,OrenBochman/sass,Anshdesire/sass,chriseppstein/sass,HugoRLopes/sass,stefanpenner/haml,Industrys/sass,amitsuroliya/sass,sideci-sample/sideci-sample-haml,antonifs/sass,nazar-pc/haml,tangposmarvin/haml,stewx/sass,nazar-pc/haml,chriseppstein/haml,JuanitoFatas/sass,StephanieMak/sass,srawlins/sass,ridixcr/sass,stewx/sass,tangposmarvin/haml,haml/haml,briangonzalez/sass,chriseppstein/haml,srinivashappy/sass,lmetla/sass,Iamronan/sass,hcatlin/sass,jaroot32/sass,haml/haml,dylannnn/sass,concord-consortium/haml,modulexcite/sass,PMArtz92/sass,dg1dd1ngs/haml,oss-practice/sass,amatsuda/haml,hcatlin/sass,nicklima/sass,StephanieMak/sass,HugoRLopes/sass,stanhu/haml,srinivashappy/sass,Ahnita/sass,keithpitty/haml,tangposmarvin/sass,cmpereirasi/sass,vio/haml,antonifs/sass,MetaAshley/sass,ridixcr/sass,modulexcite/sass,haml/haml,Anshdesire/sass,PMArtz92/sass,zaru/sass,liquidmetal/sass,schneems/sass,macressler/haml,askl56/sass