Add more details to NMS docstring to describe what input boxes are valid.
Add more details to NMS docstring to describe what input boxes are valid.

PiperOrigin-RevId: 318510630
Change-Id: I8a5917a56c2fbe68fc5c1c71b168a371728c7c19

petewarden/tensorflow,davidzchen/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_saved_model,yongtang/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,aldian/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,annarev/tensorflow,Intel-Corporation/tensorflow,frreiss/tensorflow-fred,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,freedomtan/tensorflow,petewarden/tensorflow,gautam1858/tensorflow,aam-at/tensorflow,aam-at/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,annarev/tensorflow,sarvex/tensorflow,aldian/tensorflow,Intel-tensorflow/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,karllessard/tensorflow,annarev/tensorflow,cxxgtxy/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,annarev/tensorflow,yongtang/tensorflow,aam-at/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-experimental_link_static_libraries_once,Intel-Corporation/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-Corporation/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,gautam1858/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,karllessard/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,Intel-tensorflow/tensorflow,Intel-Corporation/tensorflow,aam-at/tensorflow,frreiss/tensorflow-fred,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow,petewarden/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow,karllessard/tensorflow,karllessard/tensorflow,frreiss/tensorflow-fred,yongtang/tensorflow,Intel-tensorflow/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,paolodedios/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,tensorflow/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,aldian/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,cxxgtxy/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_saved_model,davidzchen/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,sarvex/tensorflow,Intel-Corporation/tensorflow,annarev/tensorflow,Intel-Corporation/tensorflow,petewarden/tensorflow,sarvex/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow,frreiss/tensorflow-fred,freedomtan/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,Intel-tensorflow/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-experimental_link_static_libraries_once,paolodedios/tensorflow,freedomtan/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,tensorflow/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,aldian/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,yongtang/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow,cxxgtxy/tensorflow,Intel-tensorflow/tensorflow,Intel-tensorflow/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,freedomtan/tensorflow,aam-at/tensorflow,aldian/tensorflow,annarev/tensorflow,gautam1858/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow,frreiss/tensorflow-fred,petewarden/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gautam1858/tensorflow,karllessard/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,aam-at/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,karllessard/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,Intel-tensorflow/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow,aldian/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,karllessard/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,cxxgtxy/tensorflow,aldian/tensorflow,cxxgtxy/tensorflow,gautam1858/tensorflow,davidzchen/tensorflow,aldian/tensorflow,tensorflow/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,paolodedios/tensorflow,annarev/tensorflow,paolodedios/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,yongtang/tensorflow,frreiss/tensorflow-fred,petewarden/tensorflow,davidzchen/tensorflow