updated README

README.md

@@ -1 +1,35 @@
 # eclair
+
+A scala implementation of the Lightning Network. Eclair is french for Lightning.
+
+More precisely, this is an implementation of Rusty's [deployable lightning](https://github.com/ElementsProject/lightning/raw/master/doc/deployable-lightning.pdf). In particular it uses the same wire protocol, and almost the same state machine.
+
+## Modules
+* lightning-types: scala code generation using protobuf's compiler (wire protocol)
+* lightning-core: actual implementation
+
+## Overview
+
+The general idea is to have an actor per channel, everything beeing non-blocking.
+
+A "blockchain watcher" is responsible for monitoring the blockchain, and sending events (eg. when the anchor is spent).
+
+## Usage
+Run `Demo.scala` to have an example of:
+ 1. Opening a channel
+ 2. Updating the balance with an HTLC
+ 3. Closing the channel
+
+## Status
+- [ ] Network
+- [ ] Routing
+- [X] Channel state machine
+- [X] HTLC Scripts
+- [ ] Relaying Payment
+- [X] Blockchain watcher
+
+## Ressources
+
+- [1] Lightning Network by Joseph Poon and Thaddeus Dryja ([website](http://lightning.network)), [github repository (golang)](https://github.com/LightningNetwork/lnd)
+- [2] LN-Implementation by Rusty Russel (Blockstream), [github repository (C)](https://github.com/ElementsProject/lightning)
+- [3] Thunder Network by Mats Jerratsch (Blockchain.info), [github repository (Java)](https://github.com/matsjj/thundernetwork)