docs: Update the recommened installation options for SiP Scala (#1549)

* docs: Update the recommened installation options for SiP Scala

Previously, we only mentioned renaming or aliasing ScalaCli executable. Now, we also mention brew and coursier.

* Add bash language to snippets

Co-authored-by: Piotr Chabelski <[email protected]>

Co-authored-by: Piotr Chabelski <[email protected]>

Author: tgodzik

website/docs/reference/scala-command/index.md

@@ -14,4 +14,19 @@ That is why we built in a mechanism to limit the commands, options, directives b
 
 ## Testing Scala CLI as `scala`
 
-The recommended way to test and use Scala CLI, as it will be `scala` command is to create a link to the existing Scala CLI binary named `scala-cli-sip` and add it to PATH.
+There are two recommended ways to test and use Scala CLI:
+
+- with brew:
+
+```bash
+brew install virtuslab/scala-experimental/scala
+```
+
+- with coursier:
+
+```bash
+cs setup
+cs install scala-experimental ← this command will replace the default scala runner
+```
+
+Alternatively, you can rename your `scala-cli` executable or alias it as `scala`