Remove dollars from readme bash code.
Remove dollars from readme bash code.

EDP-Sciences/sharelatex,behnaaz/sharelatex,sideci-sample/sideci-sample-sharelatex,durai145/sharelatex,dwrensha/sharelatex,EDP-Sciences/sharelatex,durai145/sharelatex,wtsi-hgi/sharelatex,eightyeight/sharelatex,sideci-sample/sideci-sample-sharelatex,nishimuuu/sharelatex,wtsi-hgi/sharelatex,nishimuuu/sharelatex,behnaaz/sharelatex,neynah/sharelatex,wtsi-hgi/sharelatex,eightyeight/sharelatex,watercrossing/sharelatex,dwrensha/sharelatex,watercrossing/sharelatex,neynah/sharelatex