library(devtools)
install_github("Displayr/flipMaxDiff")
#> Error: HTTP error 404.
#> Not Found
#>
#> Rate limit remaining: 57/60
#> Rate limit reset at: 2019-04-15 16:37:54 UTC
#>
#>
Created on 2019-04-15 by the reprex package (v0.2.1)
I get the same error message. http://github.com/Displayr/flipMaxDiff/ seems to be a private repo.
Displyr still has many public repos https://github.com/Displayr/. I'd reach out to ask how you should access the most recent version of this package. Here's contact information https://rdrr.io/github/Displayr/flipMaxDiff/#vignettes