add execution permission for Jupyter Scala kernel
add execution permission for Jupyter Scala kernel

ChicagoBoothAnalytics/DataWrangling_inR,ChicagoBoothAnalytics/HelpRFun,ChicagoBoothAnalytics/DataWrangling_inR,ChicagoBoothAnalytics/HelpRFun,ChicagoBoothAnalytics/HelpRFun,ChicagoBoothAnalytics/DataWrangling_inR