changed the image commenting in base.css to be more clear
changed the image commenting in base.css to be more clear

MelHub/lovedream,WillJHaggard/Skeleton,darol100/Skeleton,mupi/tecsaladeaula-estatico,anarute/lessonhub-landing,cosmointeractive/Skeleton,SunRey/Skeleton,getskeleton/Skeleton,champsupertramp/Skeleton,mupi/tecsaladeaula-estatico,Acidburn0zzz/Skeleton,elasticbeer/Skeleton,jewelhuq/Skeleton,mupi/mupi.github.io,iwEstz/Skeleton,erichub/Skeleton,boregan/Skeleton,getskeleton/Skeleton,fhebert-perkins/Skeleton,mupi/mupi.github.io,joegreene12/Skeleton,tizshe/Skeleton,jzhang172/Skeleton,DustinH/Skeleton,Victorgichohi/Skeleton-1,senouclovis/Skeleton,chriscaragianis/Skeleton,Iamronan/Skeleton,flamingm0e/Skeleton,orige/Skeleton,GerHobbelt/Skeleton,benhinchley/Skeleton,elevensky/Skeleton,jamesaduke/Skeleton,MelHub/lovedream,issei-n20/Skeleton,kelseycat/Skeleton,miguelcarvajal/Skeleton,pramodrhegde/Skeleton,jedbridges/Skeleton,Ontraport/Skeleton,alihalabyah/Skeleton-1,mkody/Skeleton,Borderliner/Meshki,Backstabe/Skeleton,desrik/Skeleton,pfarnach/BakersDozen,cbrauns/Skeleton,Klaudit/Skeleton,tampham47/Skeleton,zerin108/Skeleton,pgrimard/Skeleton,tessak22/Skeleton,hitesh97/Skeleton,ArdourIO/Skeleton,dmur/Skeleton,noikiy/Skeleton,greising/Skeleton,edwinfrc/Skeleton,sdukhovni/exoskeleton,cemoulto/Skeleton,ppardo/Skeleton,grandnumber/Skeleton,anarute/lessonhub-landing