Fix XSS HTML replace might get wrong on the HTML comments in the code tags
Fix XSS HTML replace might get wrong on the HTML comments in the code tags

Rwing/hackmd,aswathyjacob8/newtest,jccrofty30/hackmd,PeterDaveHello/hackmd,ironhack/hackmd,ironhack/hackmd,jccrofty30/hackmd,Yukaii/hackmd,jackycute/HackMD,hackmdio/hackmd,Rory80Hz/hackmd,aswathyjacob8/newtest,xnum/hackmd,janniklorenz/HackMD,aswathyjacob8/newtest,Rwing/hackmd,PeterDaveHello/hackmd,Yukaii/hackmd,janniklorenz/HackMD,xnum/hackmd,janniklorenz/HackMD,Rory80Hz/hackmd,hackmdio/hackmd,jccrofty30/hackmd,Rwing/hackmd,ironhack/hackmd,xnum/hackmd,PeterDaveHello/hackmd,jackycute/HackMD,Rory80Hz/hackmd,hackmdio/hackmd,jackycute/HackMD,Yukaii/hackmd