Update README.md

Author: jonasjabari

docs/start/README.md

@@ -1,9 +1,27 @@
 # Matestack UI Core Docs
 
-Welcome to the docs of the Ruby gem `matestack-ui-core`, enabling you to easily create component based (reactive) web UIs in pure Ruby on top of your Rails application.
+Welcome to the docs of the Ruby gem `matestack-ui-core`, enabling you to easily create component based (reactive) web UIs in pure Ruby on top of your Rails applications.
 
-The docs cover three main topics of `matestack-ui-core`
+The docs cover following main topics:
 
-- UI components
-- Reactive components
-- Reactive apps
+- Installation and general information
+- UI components in pure Ruby
+- Reactive components in pure Ruby
+- Reactive apps in pure Ruby
+
+
+## [Installation](/docs/core/start/100-installation/)
+
+Learn how to properly set up and update matestack-ui-core with your existing Rails application.
+
+## [UI components in pure Ruby](/docs/core/ui_components/)
+
+Craft your UI based on your components written in pure Ruby. Utilizing Ruby's amazing language features, you're able to create a cleaner and more maintainable UI implementation.
+
+## [Reactive components in pure Ruby](/docs/core/reactive_components/)
+
+What about going even one step further and implement **REACTIVE** UIs in pure Ruby? Matestack's reactive core components can be used with a simple Ruby DSL enabling you to create reactive UIs without touching JavaScript!
+
+## [Reactive apps in pure Ruby](/docs/core/reactive_apps/)
+
+The last step in order to leverage the full Matestack power: Create app (~Rails layout) and page (Rails ~view) classes and implement dynamic page transitions without any JavaScript implementation required.