Include note to update minimum-stability to "dev" (#87)

Author: danielh-official

resources/views/docs/desktop/1/getting-started/installation.md

@@ -34,6 +34,8 @@ composer require nativephp/electron
 This package contains all the classes, commands, and interfaces that your application will need to work with the
 Electron runtime.
 
+**Note**: If this fails, try setting the `minimum-stability` in your composer.json to "dev". NativePHP is in beta at this point in time.
+
 ## Run the NativePHP installer
 
 ```shell