update docs for showing apps in notebooks (#7824)
update docs for showing apps in notebooks (#7824)


bokeh/bokeh,aavanian/bokeh,dennisobrien/bokeh,aavanian/bokeh,ericmjl/bokeh,mindriot101/bokeh,bokeh/bokeh,jakirkham/bokeh,stonebig/bokeh,ericmjl/bokeh,timsnyder/bokeh,mindriot101/bokeh,ericmjl/bokeh,Karel-van-de-Plassche/bokeh,Karel-van-de-Plassche/bokeh,bokeh/bokeh,stonebig/bokeh,Karel-van-de-Plassche/bokeh,dennisobrien/bokeh,jakirkham/bokeh,mindriot101/bokeh,ericmjl/bokeh,aavanian/bokeh,jakirkham/bokeh,dennisobrien/bokeh,dennisobrien/bokeh,stonebig/bokeh,dennisobrien/bokeh,jakirkham/bokeh,timsnyder/bokeh,jakirkham/bokeh,Karel-van-de-Plassche/bokeh,stonebig/bokeh,timsnyder/bokeh,mindriot101/bokeh,aavanian/bokeh,timsnyder/bokeh,Karel-van-de-Plassche/bokeh,ericmjl/bokeh,aavanian/bokeh,bokeh/bokeh,timsnyder/bokeh,bokeh/bokeh