Fix textcomplete of extra tags for blockquote not match space character in the between
Fix textcomplete of extra tags for blockquote not match space character in the between

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