tree ece3f707777092e00630d700dae677a7ecb3ddd8
parent 9f917483845daddfadfcc2000b3597c8cbd27ac7
author Hao Zhu <haozhu233@gmail.com> 1515517274 -0500
committer Hao Zhu <haozhu233@gmail.com> 1515517274 -0500

add footnote for latex