Examples in Github should link to hosted versions and vice versa

https://github.com/rstudio/shiny-examples/tree/main/183-sv-simple (the readme) linking to https://gallery.shinyapps.io/183-sv-simple/ and vice versa.  

multiply by 188, of course.

Related - https://gallery.shinyapps.io/index.html should exist and similarly have links to the examples within