[TF 2.0 docs] Add example for EarlyStopping
[TF 2.0 docs] Add example for EarlyStopping

I think a short example like this is very useful for user who don't have much experience and want to use a callback for their first time.
tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,renyi533/tensorflow,chemelnucfin/tensorflow,ghchinoy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-pywrap_tf_optimizer,DavidNorman/tensorflow,adit-chandra/tensorflow,gunan/tensorflow,adit-chandra/tensorflow,DavidNorman/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,paolodedios/tensorflow,sarvex/tensorflow,tensorflow/tensorflow,arborh/tensorflow,jhseu/tensorflow,annarev/tensorflow,jhseu/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,davidzchen/tensorflow,Intel-Corporation/tensorflow,sarvex/tensorflow,paolodedios/tensorflow,arborh/tensorflow,davidzchen/tensorflow,DavidNorman/tensorflow,renyi533/tensorflow,jhseu/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,xzturn/tensorflow,renyi533/tensorflow,paolodedios/tensorflow,freedomtan/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,jhseu/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,yongtang/tensorflow,Intel-tensorflow/tensorflow,ppwwyyxx/tensorflow,Intel-tensorflow/tensorflow,Intel-Corporation/tensorflow,DavidNorman/tensorflow,freedomtan/tensorflow,Intel-tensorflow/tensorflow,arborh/tensorflow,xzturn/tensorflow,chemelnucfin/tensorflow,tensorflow/tensorflow,alsrgv/tensorflow,gautam1858/tensorflow,aam-at/tensorflow,renyi533/tensorflow,annarev/tensorflow,gunan/tensorflow,frreiss/tensorflow-fred,gautam1858/tensorflow,ppwwyyxx/tensorflow,alsrgv/tensorflow,yongtang/tensorflow,yongtang/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow,chemelnucfin/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,chemelnucfin/tensorflow,ghchinoy/tensorflow,sarvex/tensorflow,aam-at/tensorflow,ghchinoy/tensorflow,aldian/tensorflow,adit-chandra/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_saved_model,ghchinoy/tensorflow,freedomtan/tensorflow,frreiss/tensorflow-fred,karllessard/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,cxxgtxy/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,DavidNorman/tensorflow,ppwwyyxx/tensorflow,gunan/tensorflow,frreiss/tensorflow-fred,adit-chandra/tensorflow,xzturn/tensorflow,arborh/tensorflow,Intel-tensorflow/tensorflow,gunan/tensorflow,ghchinoy/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,freedomtan/tensorflow,sarvex/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,renyi533/tensorflow,tensorflow/tensorflow,davidzchen/tensorflow,gautam1858/tensorflow,sarvex/tensorflow,aldian/tensorflow,alsrgv/tensorflow,ghchinoy/tensorflow,jhseu/tensorflow,alsrgv/tensorflow,gunan/tensorflow,paolodedios/tensorflow,adit-chandra/tensorflow,karllessard/tensorflow,gunan/tensorflow,renyi533/tensorflow,renyi533/tensorflow,petewarden/tensorflow,frreiss/tensorflow-fred,arborh/tensorflow,aam-at/tensorflow,yongtang/tensorflow,Intel-tensorflow/tensorflow,jhseu/tensorflow,xzturn/tensorflow,ppwwyyxx/tensorflow,yongtang/tensorflow,arborh/tensorflow,jhseu/tensorflow,frreiss/tensorflow-fred,gunan/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,aldian/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_saved_model,chemelnucfin/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,aam-at/tensorflow,annarev/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,annarev/tensorflow,jhseu/tensorflow,Intel-tensorflow/tensorflow,alsrgv/tensorflow,xzturn/tensorflow,gunan/tensorflow,alsrgv/tensorflow,ppwwyyxx/tensorflow,arborh/tensorflow,cxxgtxy/tensorflow,adit-chandra/tensorflow,ghchinoy/tensorflow,karllessard/tensorflow,DavidNorman/tensorflow,chemelnucfin/tensorflow,aldian/tensorflow,karllessard/tensorflow,Intel-Corporation/tensorflow,gunan/tensorflow,tensorflow/tensorflow,ppwwyyxx/tensorflow,karllessard/tensorflow,tensorflow/tensorflow,DavidNorman/tensorflow,gautam1858/tensorflow,frreiss/tensorflow-fred,petewarden/tensorflow,alsrgv/tensorflow,alsrgv/tensorflow,renyi533/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aldian/tensorflow,adit-chandra/tensorflow,gautam1858/tensorflow,chemelnucfin/tensorflow,chemelnucfin/tensorflow,gautam1858/tensorflow,xzturn/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,Intel-tensorflow/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,alsrgv/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,frreiss/tensorflow-fred,paolodedios/tensorflow,ghchinoy/tensorflow,arborh/tensorflow,paolodedios/tensorflow,cxxgtxy/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,ghchinoy/tensorflow,aam-at/tensorflow,annarev/tensorflow,ppwwyyxx/tensorflow,Intel-tensorflow/tensorflow,gunan/tensorflow,alsrgv/tensorflow,renyi533/tensorflow,DavidNorman/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_saved_model,davidzchen/tensorflow,DavidNorman/tensorflow,ppwwyyxx/tensorflow,tensorflow/tensorflow-pywrap_saved_model,sarvex/tensorflow,Intel-Corporation/tensorflow,chemelnucfin/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,yongtang/tensorflow,paolodedios/tensorflow,jhseu/tensorflow,davidzchen/tensorflow,frreiss/tensorflow-fred,arborh/tensorflow,ppwwyyxx/tensorflow,aam-at/tensorflow,aldian/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,ghchinoy/tensorflow,xzturn/tensorflow,aldian/tensorflow,aam-at/tensorflow,alsrgv/tensorflow,ppwwyyxx/tensorflow,ghchinoy/tensorflow,chemelnucfin/tensorflow,arborh/tensorflow,petewarden/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,adit-chandra/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-pywrap_tf_optimizer,cxxgtxy/tensorflow,alsrgv/tensorflow,chemelnucfin/tensorflow,yongtang/tensorflow,cxxgtxy/tensorflow,ppwwyyxx/tensorflow,ghchinoy/tensorflow,adit-chandra/tensorflow,annarev/tensorflow,tensorflow/tensorflow,renyi533/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,xzturn/tensorflow,freedomtan/tensorflow,DavidNorman/tensorflow,xzturn/tensorflow,Intel-Corporation/tensorflow,sarvex/tensorflow,petewarden/tensorflow,aam-at/tensorflow,renyi533/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,gunan/tensorflow,adit-chandra/tensorflow,cxxgtxy/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,arborh/tensorflow,yongtang/tensorflow,chemelnucfin/tensorflow,frreiss/tensorflow-fred,aam-at/tensorflow,annarev/tensorflow,annarev/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,gunan/tensorflow,Intel-Corporation/tensorflow,Intel-Corporation/tensorflow,aldian/tensorflow,adit-chandra/tensorflow,paolodedios/tensorflow,xzturn/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,ppwwyyxx/tensorflow,paolodedios/tensorflow,DavidNorman/tensorflow,Intel-Corporation/tensorflow,petewarden/tensorflow,xzturn/tensorflow,freedomtan/tensorflow,aam-at/tensorflow