restructure README file

README.md

@@ -6,17 +6,38 @@ Helios IDE for Amber Smalltalk
 How to contribute
 ====
 
-There are two ways how to contribute. In both way you need to fork this repo first.
+Prerequisites
+===
 
-First way is by cloning your fork and setting it up (have `node` and `npm` installed,
-have `bower`, `grunt-cli` and `amber-cli` npm packages installed globally,
-then run `npm install`, `bower install` and `grunt devel` in the project directory,
-after what you can go the classical Amber project way of running `amber serve` from CLI
-and go to `http://localhost:4000/` in the browser). This way you can only contribute
-to Helios itself.
+The following packages need to be installed globally:
+
+* `node` (NodeJS)
+* `npm` (NodeJS package manager)
+* `bower` (JavaScript package manager)
+* `grunt-cli` (build packages on the commandline)
+* `amber-cli` (for serving and creating Amber applications)
+
+Helios development setup
+===
+
+There are two ways how to contribute. Both ways require forking this repo first and fetching all required packages via NPM and Bower.
+
+# `git clone https://github.com/amber-smalltalk/helios.git`
+# `cd helios`
+# `npm install`
+# `bower install`
+# `grunt devel`
+
+If you only want to contribute to Helios itself you can now run Helios as a regular Amber application by executing
+
+* `amber serve`
+
+and visiting `http://localhost:4000/` in the browser.
 
 As Helios is still coupled with Amber, you need occasionally make change to Amber itself,
-not just to Helios code. Thus, recommended way is to fork and clone Amber repository itself
-for development (see https://github.com/amber-smalltalk/amber/blob/master/CONTRIBUTING.md,
+not just to Helios code.
+The recommended way is to fork and clone Amber repository itself for development
+(see https://github.com/amber-smalltalk/amber/blob/master/CONTRIBUTING.md,
 "Setup your Amber clone" part and use your own fork in the "clone Helios" step).
-This allows you to develop Amber itself, `amber-cli` and Helios at once.
+This allows you to develop Amber itself, `amber-cli` and Helios simultaneously.
+