Update INSTALLATION.md (#256)

Author: spdegabrielle

docs/INSTALLATION.md

@@ -1,39 +1,36 @@
 # Installation
 
-You can download the latest Racket installer from [the official Racket website][racket-dl].  
-Installers are available for Windows (64-bit and 32-bit), macOS (Apple Silicon and Intel) and Linux (64-bit).
+The Racket distribution can be downloaded from https://download.racket-lang.org
 
-If you prefer to use a package manager, like `brew` on MacOS, `winget` on Windows or your Linux distribution's package manager, see [the Racket Wiki][racket-wiki-install] for more detailed instructions.
+Installers are provided for 
 
-## Linux
+* Windows
+* Linux
+* macOS
 
-The Linux build is generic enough that it should work on most distributions, including relatively old distributions.
-After downloading the installer file, run it with
+Please reference Racket's [Getting Started](http://docs.racket-lang.org/getting-started/) page for guidance materials.
 
-```shell
-sh racket-8.8-x86_64-linux-cs.sh
-```
+The [Racket Guide](https://docs.racket-lang.org/guide/intro.html) introduces you to interacting with Racket. 
 
-You may need to prefix `sudo` to the start of the command to install to a location that requires administrator access.
+See [DrRacket: The Racket Programming Environment](https://docs.racket-lang.org/drracket/index.html) for guidance using the DrRacket IDE.
 
-~~~~exercism/caution
-Racket may also be available through your distribution's package manager, although it may be older than the latest Racket version.
-While you may choose to use your package manager's version now and upgrade to the current version later, as a learner you will have a much better experience if you stick to the current release available from [the official download site][racket-dl].
+See [Command-Line Tools and Your Editor of Choice](https://docs.racket-lang.org/guide/other-editors.html) for an introduction to Racket command line tools and using other editors.
 
-[racket-dl]: https://download.racket-lang.org
-~~~~
 
-## macOS
+## About the Linux installer:
+The Linux build is generic enough that it should work on most distributions, including relatively old distributions. 
 
-If your machine uses the M1 or M2 series processors, select **Apple Silicon** in the platform dropdown menu before downloading.
+After downloading the installer file, run it with
+```
+sh racket-8.10-x86_64-linux-cs.sh
+```
 
-## IDEs
+You may need to prefix `sudo` to the start of the command to install to a location that requires administrator access.
 
-See [DrRacket: The Racket Programming Environment][racket-drracket] for guidance using the DrRacket IDE.
+**Warning: Racket may also be available through your distribution's package manager, although it may be older than the latest Racket version.**
+While you may choose to do this later, as a learner you will have a much better experience if you stick to the current release available from https://download.racket-lang.org
 
-See [Command-Line Tools and Your Editor of Choice][racket-clt] for an introduction to racket command line tool and using other editors.
 
-[racket-dl]: https://download.racket-lang.org
-[racket-wiki-install]: https://github.com/racket/racket/wiki/Installing-Racket
-[racket-drracket]: https://docs.racket-lang.org/drracket/index.html
-[racket-clt]: https://docs.racket-lang.org/guide/other-editors.html
+## About the macOS installer:
+
+If your machine uses the M1 or M2 series processors, select **Apple Silicon** in the platform dropdown menu before downloading.