Make benchmark script executable
Make benchmark script executable

thephpleague/commonmark,stof/commonmark,kkiernan/commonmark,kkiernan/commonmark,postalservice14/commonmark,bcremer/commonmark,garethellis36/commonmark,postalservice14/commonmark,garethellis36/commonmark,cebe/markdown-1,hason/commonmark,colinodell/commonmark,fesor/commonmark,fesor/commonmark,thephpleague/commonmark,hason/commonmark