Update DBN.py
Update DBN.py

minor fix on the documentation of field names
cainiaocome/DeepLearningTutorials,FighterLYL/DeepLearningTutorials,iamtrask/DeepLearningTutorials,EugenePig/DeepLearningTutorials,liangz0707/DeepLearningTutorials,NanYoMy/DeepLearningTutorials,heaven00/DeepLearningTutorials,iamtrask/DeepLearningTutorials,SYSUNLP/DeepLearningTutorials,marchick209/DeepLearningTutorials,abergeron/DeepLearningTutorials,OlafLee/DeepLearningTutorials,pengsun/DeepLearningTutorials,webeng/DeepLearningTutorials,shijiaxing/DeepLearningTutorials,sha8e/DeepLearningTutorials,haojunyu/DeepLearningTutorials,webeng/DeepLearningTutorials,linan7788626/DeepLearningTutorials,jyb002/DeepLearningTutorials,xuezhisd/DeepLearningTutorials,haojunyu/DeepLearningTutorials,xuezhisd/DeepLearningTutorials,mmolero/DeepLearningTutorials,AveRapina/DeepLearningTutorials,EugenePig/DeepLearningTutorials,pengsun/DeepLearningTutorials,FighterLYL/DeepLearningTutorials,liangz0707/DeepLearningTutorials,agarbuno/DeepLearningTutorials,abergeron/DeepLearningTutorials,agarbuno/DeepLearningTutorials,shijiaxing/DeepLearningTutorials,pombredanne/DeepLearningTutorials,sha8e/DeepLearningTutorials,linan7788626/DeepLearningTutorials,heaven00/DeepLearningTutorials,pombredanne/DeepLearningTutorials,jorik041/DeepLearningTutorials,marchick209/DeepLearningTutorials,mmolero/DeepLearningTutorials,yukoba/DeepLearningTutorials,jyb002/DeepLearningTutorials,NanYoMy/DeepLearningTutorials,ericzhouh/DeepLearningTutorials,OlafLee/DeepLearningTutorials,AveRapina/DeepLearningTutorials,ericzhouh/DeepLearningTutorials,SYSUNLP/DeepLearningTutorials,webeng/DeepLearningTutorials,jorik041/DeepLearningTutorials,yukoba/DeepLearningTutorials,cainiaocome/DeepLearningTutorials