convert bold subtitles to subsections
convert bold subtitles to subsections

linan7788626/DeepLearningTutorials,mmolero/DeepLearningTutorials,OlafLee/DeepLearningTutorials,jyb002/DeepLearningTutorials,sha8e/DeepLearningTutorials,AveRapina/DeepLearningTutorials,pengsun/DeepLearningTutorials,liangz0707/DeepLearningTutorials,yukoba/DeepLearningTutorials,haojunyu/DeepLearningTutorials,EugenePig/DeepLearningTutorials,FighterLYL/DeepLearningTutorials,cainiaocome/DeepLearningTutorials,cainiaocome/DeepLearningTutorials,haojunyu/DeepLearningTutorials,webeng/DeepLearningTutorials,agarbuno/DeepLearningTutorials,pengsun/DeepLearningTutorials,NanYoMy/DeepLearningTutorials,jorik041/DeepLearningTutorials,jorik041/DeepLearningTutorials,pombredanne/DeepLearningTutorials,webeng/DeepLearningTutorials,heaven00/DeepLearningTutorials,abergeron/DeepLearningTutorials,ericzhouh/DeepLearningTutorials,abergeron/DeepLearningTutorials,pombredanne/DeepLearningTutorials,agarbuno/DeepLearningTutorials,ericzhouh/DeepLearningTutorials,shijiaxing/DeepLearningTutorials,SYSUNLP/DeepLearningTutorials,OlafLee/DeepLearningTutorials,xuezhisd/DeepLearningTutorials,webeng/DeepLearningTutorials,heaven00/DeepLearningTutorials,marchick209/DeepLearningTutorials,liangz0707/DeepLearningTutorials,jyb002/DeepLearningTutorials,EugenePig/DeepLearningTutorials,sha8e/DeepLearningTutorials,mmolero/DeepLearningTutorials,FighterLYL/DeepLearningTutorials,SYSUNLP/DeepLearningTutorials,AveRapina/DeepLearningTutorials,shijiaxing/DeepLearningTutorials,yukoba/DeepLearningTutorials,linan7788626/DeepLearningTutorials,iamtrask/DeepLearningTutorials,marchick209/DeepLearningTutorials,xuezhisd/DeepLearningTutorials,NanYoMy/DeepLearningTutorials,iamtrask/DeepLearningTutorials