In tutorials.md change http to https. Also get rid of www#2

krishnakumarg1984 wants to merge 1 commit intoSpinW:masterSpinW/spinw.github.io:masterfrom

krishnakumarg1984:fix_https_www_in_tutorial_pagekrishnakumarg1984/spinw.github.io:fix_https_www_in_tutorial_pageCopy head branch name to clipboard