fix update upgrade sections

Author: avallecam

learners/setup.md

@@ -95,13 +95,9 @@ This tutorial requires **R version 4.0.0 or later**.
 To check if your R version is up to date:
 
 - In RStudio your R version will be printed in [the console window](https://docs.posit.co/ide/user/ide/guide/code/console.html). Or run `sessionInfo()`.
-
-- **To update R**, download and install the latest version from the [R project website](https://cran.rstudio.com/) for your operating system.
-
-  - After installing a new version, you will have to reinstall all your packages with the new version. 
-
-  - For Windows, the `{installr}` package can upgrade your R version and migrate your package library.
-
+- **To update R**, install the latest version for your operating system from the [R project website](https://cran.rstudio.com/).
+    - After installing a new version, you will have to reinstall all your packages with the new version. 
+    - For Windows, the `{installr}` package can upgrade your R version and migrate your package library.
 - **To update RStudio**, open RStudio and click on 
 `Help > Check for Updates`. If a new version is available follow the 
 instructions on the screen.