Remove redundant empty line
Merge branch 'develop' of github.com:edXPDRLab/manuals into zhTW-images
Merge branch 'develop' into zhTW-images
Merge branch 'zhTW-images' into develop
Fixed issue #179
Merge branch 'develop' of github.com:edXPDRLab/manuals into develop
Fixed the filename of #179