shiny app display github reference id when published on shinyapps.io

tl;dr

How can I display gtihub reference (release id, commit id etc. ) on the app which I publish on shinyapps.io

Details :

Let's say, I have shiny app A (version X), which i published on shinyapps.io. As development is on going it is continuously getting updated on github (version X.1, X.2 ,...). How can I make sure to the users, which version they are using on shinyapps.io ?. Is there any way that when I push the app to shinyapps.io from R studio, it displays latest github commit id or version at specific place in the app (e.g app footer)

~Chirag.
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