doc: mention possibility to start creator with a session
doc: mention possibility to start creator with a session

Change-Id: I0628254ff9ff37ba2d524ef9462a125692aef9a4
Reviewed-by: Leena Miettinen <885fda02d52616fec24ed5fed9b3f0568fce3ead@nokia.com>

farseerri/git_code,ostash/qt-creator-i18n-uk,bakaiadam/collaborative_qt_creator,darksylinc/qt-creator,duythanhphan/qt-creator,colede/qtcreator,farseerri/git_code,richardmg/qtcreator,syntheticpp/qt-creator,KDE/android-qt-creator,richardmg/qtcreator,kuba1/qtcreator,duythanhphan/qt-creator,maui-packages/qt-creator,kuba1/qtcreator,darksylinc/qt-creator,KDE/android-qt-creator,syntheticpp/qt-creator,maui-packages/qt-creator,danimo/qt-creator,martyone/sailfish-qtcreator,danimo/qt-creator,colede/qtcreator,omniacreator/qtcreator,danimo/qt-creator,darksylinc/qt-creator,xianian/qt-creator,danimo/qt-creator,kuba1/qtcreator,Distrotech/qtcreator,syntheticpp/qt-creator,maui-packages/qt-creator,kuba1/qtcreator,jonnor/qt-creator,xianian/qt-creator,azat/qtcreator,maui-packages/qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,bakaiadam/collaborative_qt_creator,richardmg/qtcreator,darksylinc/qt-creator,martyone/sailfish-qtcreator,colede/qtcreator,hdweiss/qt-creator-visualizer,bakaiadam/collaborative_qt_creator,xianian/qt-creator,kuba1/qtcreator,hdweiss/qt-creator-visualizer,darksylinc/qt-creator,richardmg/qtcreator,KDAB/KDAB-Creator,azat/qtcreator,malikcjm/qtcreator,darksylinc/qt-creator,ostash/qt-creator-i18n-uk,syntheticpp/qt-creator,maui-packages/qt-creator,syntheticpp/qt-creator,xianian/qt-creator,azat/qtcreator,hdweiss/qt-creator-visualizer,martyone/sailfish-qtcreator,richardmg/qtcreator,amyvmiwei/qt-creator,colede/qtcreator,hdweiss/qt-creator-visualizer,ostash/qt-creator-i18n-uk,martyone/sailfish-qtcreator,darksylinc/qt-creator,xianian/qt-creator,duythanhphan/qt-creator,bakaiadam/collaborative_qt_creator,colede/qtcreator,azat/qtcreator,ostash/qt-creator-i18n-uk,ostash/qt-creator-i18n-uk,AltarBeastiful/qt-creator,kuba1/qtcreator,omniacreator/qtcreator,jonnor/qt-creator,Distrotech/qtcreator,farseerri/git_code,amyvmiwei/qt-creator,omniacreator/qtcreator,amyvmiwei/qt-creator,omniacreator/qtcreator,Distrotech/qtcreator,xianian/qt-creator,danimo/qt-creator,richardmg/qtcreator,duythanhphan/qt-creator,KDE/android-qt-creator,duythanhphan/qt-creator,hdweiss/qt-creator-visualizer,amyvmiwei/qt-creator,farseerri/git_code,syntheticpp/qt-creator,KDE/android-qt-creator,AltarBeastiful/qt-creator,Distrotech/qtcreator,jonnor/qt-creator,farseerri/git_code,malikcjm/qtcreator,bakaiadam/collaborative_qt_creator,xianian/qt-creator,KDAB/KDAB-Creator,xianian/qt-creator,colede/qtcreator,richardmg/qtcreator,syntheticpp/qt-creator,KDE/android-qt-creator,farseerri/git_code,malikcjm/qtcreator,danimo/qt-creator,duythanhphan/qt-creator,kuba1/qtcreator,jonnor/qt-creator,farseerri/git_code,omniacreator/qtcreator,amyvmiwei/qt-creator,darksylinc/qt-creator,malikcjm/qtcreator,xianian/qt-creator,omniacreator/qtcreator,AltarBeastiful/qt-creator,danimo/qt-creator,duythanhphan/qt-creator,amyvmiwei/qt-creator,omniacreator/qtcreator,AltarBeastiful/qt-creator,colede/qtcreator,azat/qtcreator,AltarBeastiful/qt-creator,malikcjm/qtcreator,ostash/qt-creator-i18n-uk,Distrotech/qtcreator,danimo/qt-creator,KDE/android-qt-creator,KDE/android-qt-creator,maui-packages/qt-creator,KDAB/KDAB-Creator,danimo/qt-creator,Distrotech/qtcreator,amyvmiwei/qt-creator,jonnor/qt-creator,amyvmiwei/qt-creator,malikcjm/qtcreator,ostash/qt-creator-i18n-uk,martyone/sailfish-qtcreator,maui-packages/qt-creator,KDAB/KDAB-Creator,hdweiss/qt-creator-visualizer,bakaiadam/collaborative_qt_creator,AltarBeastiful/qt-creator,kuba1/qtcreator,malikcjm/qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,Distrotech/qtcreator,jonnor/qt-creator,KDAB/KDAB-Creator,KDAB/KDAB-Creator,bakaiadam/collaborative_qt_creator,AltarBeastiful/qt-creator,KDE/android-qt-creator,azat/qtcreator,farseerri/git_code,kuba1/qtcreator,martyone/sailfish-qtcreator