Add installation documentation around running Mozart in isolation

Author: coenjacobs

README.md

@@ -6,6 +6,7 @@ This package requires PHP 7.3 or higher in order to run the tool. You can use th
 **Warning:** This package is very experimental and breaking changes are very likely until version 1.0.0 is tagged. Use with caution, always wear a helmet when using this in production environments.
 
 ## Installation
+Mozart brings its own dependencies to the table and that potentially introduces its own problems (yes, I realise how meta that is, for a package like this). That's why installing Mozart in isolation, either through the Docker container, the available PHAR file or installing Mozart as a global dependency with Composer is prefered. In all cases, the [configuration](#configuration) still needs to be placed in the `composer.json` file of the project iself.
 
 ### Docker
 Pull the Docker image from the registry: