Please keep in mind that we need to read a written report in order to evaluate your project (as an example, have a look at this report from last year, which we also had linked to on moodle). This means that you will need to commit and push the output from your .Rmd file, which it seems you haven't done till now.
Do not wait till the submission date for this step! After activating GitHub pages (see #1) and pushing your html outputs, have a look at your report which will be hosted on:
Have a look at this URL and check if you are satisfied with your result. By the way, you can make your output cleaner by adding the following lines to the top of your Rmarkdown file:
knitr::opts_chunk$set(echo = FALSE) # hides code
knitr::opts_chunk$set(warning = FALSE) # hides warnings
knitr::opts_chunk$set(message = FALSE) # hides messages