Update README.md

Author: iefserge

README.md

@@ -2,10 +2,14 @@
 
 [![Build Status](https://travis-ci.org/runtimejs/runtime.svg?branch=master)](https://travis-ci.org/runtimejs/runtime) [![npm](https://img.shields.io/npm/v/runtimejs.svg)](https://www.npmjs.com/package/runtimejs) [![Gem](https://img.shields.io/badge/freenode-%23runtimejs-blue.svg)](https://freenode.net/) [![Travis](https://img.shields.io/badge/GITTER-JOIN_CHAT_%E2%86%92-1dce73.svg)](https://gitter.im/runtimejs/runtime)
 
-__runtime.js__ is an open-source library operating system for the cloud that runs JavaScript, could be bundled up with an application and deployed as a lightweight and immutable VM image. 
+__runtime.js__ is an open-source library operating system (unikernel) for the cloud that runs JavaScript, can be bundled up with an application and deployed as a lightweight and immutable VM image. 
 
 It's built on [V8 JavaScript engine](https://code.google.com/p/v8/) and uses event-driven and non-blocking I/O model inspired by [Node.js](https://nodejs.org/). At the moment [KVM](http://www.linux-kvm.org/page/Main_Page) is the only supported hypervisor.
 
+It tries to be compatible with npm module ecosystem and supports some of the Node.js API.
+
+_WARNING: project is in development and not ready for production use._
+
 ### Installation
 
 First thing is the command line tool `runtime-cli`, it will add `runtime` command to the shell. Type `runtime` to get full usage help.
@@ -14,7 +18,7 @@ First thing is the command line tool `runtime-cli`, it will add `runtime` comman
 npm install runtime-cli -g
 ```
 
-Make sure QEMU VM is installed, so you can test/debug applications locally.
+Make sure QEMU is installed, it enables running applications locally.
 
 ```
 brew install qemu           # OSX
@@ -33,25 +37,25 @@ npm install runtimejs --save
 echo "console.log('ok')" > index.js
 ```
 
-Run project locally in the QEMU VM:
+Run project locally in QEMU:
 
 ```
 runtime start
 ```
 
-Or let it watch directory for changes and restart QEMU automatically:
+That's it, it should start and print `ok` in the console. 
+
+Optionally you can let it watch directory for changes and restart QEMU automatically:
 
 ```
 runtime watch
 ```
 
-WARNING: runtime.js is in development and not ready for production use. Contributions are welcome.
-
 ## How does it work?
 
 There are two main components: operating system kernel and a <a href="https://www.npmjs.com/package/runtimejs"><nobr>JavaScript library</nobr></a>.
 
-The kernel is written in C++ and manages low-level resources like CPU and memory and runs JavaScript code using embedded <a href="https://code.google.com/p/v8/"><nobr>V8 JavaScript engine</nobr></a>.
+The kernel is written in C++ and manages low-level resources like CPU and memory, runs JavaScript using embedded V8 engine. Library drives the entire system and manages hardware devices (usually virtualized by hypervisor).
 
 ## Docs