Update dependency gist-embed to 2.6.0
Update dependency gist-embed to 2.6.0

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