Docs: Improve INSTALLATION guide (#73)

* Improve INSTALLTION guide

* Rephrasing

Author: joaopalet

INSTALLATION.md

@@ -20,27 +20,27 @@ brew install stackit
 
 ### Linux
 
-We are working on distributing the CLI using a package manager for Linux. For the moment, you can either install via [Homebrew](https://brew.sh/) or refer to the [manual installation](#manual-installation) guide.
+We are working on distributing the CLI using a package manager for Linux. For the moment, you can either install via [Homebrew](https://brew.sh/) or refer to one of the installation methods below.
 
 ### Windows
 
-We are working on distributing the CLI using a package manager for Windows. For the moment, please refer to the [manual installation](#manual-installation) guide.
+We are working on distributing the CLI using a package manager for Windows. For the moment, please refer to one of the installation methods below.
 
-## Manual installation
-
-You can also get the STACKIT CLI by compiling it from source or downloading a pre-compiled binary.
-
-### Compile from source
+## Using `go install`
 
-If you have Go 1.16+ installed, you can directly install via:
+If you have [Go](https://go.dev/doc/install) 1.16+ installed, you can directly install the STACKIT CLI via:
 
 ```shell
 go install github.com/stackitcloud/stackit-cli@latest
 ```
 
 > For more information, please refer to the [`go install` documentation](https://go.dev/ref/mod#go-install)
 
-Alternativelly, you can:
+## Manual installation
+
+You can also get the STACKIT CLI by compiling it from source or downloading a pre-compiled binary.
+
+### Compile from source
 
 1. Clone the repository
 2. Build the application locally by running: