doc: Update instructions

DEVELOPMENT.md

@@ -8,31 +8,35 @@ The project is set up to be used with [VS Code](https://code.visualstudio.com/).
 
 The development environment is expected to be a POSIX-compliant system. On Windows, WSL will do fine.
 
-Additionally, you will need to have [Docker](https://www.docker.com/get-started) available.
+You will need [NodeJS](https://nodejs.org/) and [yarn](https://yarnpkg.com/getting-started/install) to be able to work with the project.
+
+Additionally, you will need to have [Docker](https://www.docker.com/get-started) available, to use the container-based Kitten Game development server. If you do not have Docker, you can still build a release version of the script and drop that into your userscript manager.
 
 ### Development
 
-1. Build the development container and start it.
+1. Start a watcher to continuously rebuild KS when you make code changes.
 
 ```shell
-yarn devcontainer:run
+yarn userscript:watch
 ```
 
-The script prints the URL where you can now play the game with KS installed.
+> This task can also be started directly in VS Code, using the **Run Task** command.
 
-2. Start a watcher to continuously rebuild KS when you make code changes.
+1. Build the development container and start it.
 
 ```shell
-yarn userscript:watch
+yarn devcontainer:run
 ```
 
+The script prints the URL where you can now play the game with KS installed.
+
 You will need to manually reload the page after each build to get the latest changes in the browser.
 
 ### Type-checking
 
 To fill the **Problems** panel in VS Code with all current, type-related errors, run the `typecheck:all` npm task in VS Code.
 
-## Building a release of the userscript
+## Building a release version of the userscript
 
 1. Run the script to build the release: