doc: improve README

README.md

-# Substrate Node Template
+# Libre currency based on Substrate framework
 
-A fresh FRAME-based [Substrate](https://www.substrate.io/) node, ready for hacking :rocket:
+A FRAME-based [Substrate](https://www.substrate.io/) libre currency implementation.
 
-### Rust Setup
+## Setup
 
-First, complete the [basic Rust setup instructions](./docs/rust-setup.md).
+First, complete the [basic setup instructions](./docs/setup.md).
 
-### Run
+## Build
 
-Use Rust's native `cargo` command to build and launch the template node:
+NOTE: You must first follow the instructions in the [Setup] section (#setup).
+
+Use the following command to build the node without launching it:
 
 ```sh
-cargo run --release -- --dev --tmp
+cargo build --release
 ```
 
-### Build
+## Run
 
-The `cargo run` command will perform an initial build. Use the following command to build the node
-without launching it:
+Use Rust's native `cargo` command to build and launch the node:
 
 ```sh
-cargo build --release
+cargo run --release -- --dev --tmp
 ```
 
+
 ### Embedded Docs
 
 Once the project has been built, the following command can be used to explore all parameters and
@@ -63,6 +65,10 @@ RUST_LOG=debug RUST_BACKTRACE=1 ./target/release/lc-core -lruntime=debug --dev
 Once the node template is running locally, you can connect it with **Polkadot-JS Apps** front-end
 to interact with your chain. [Click here](https://polkadot.js.org/apps/#/explorer?rpc=ws://localhost:9944) connecting the Apps to your local node template.
 
+CAUTION: Pour que **Polkadot-JS Apps** soit capable de comprendre pleinement l'interface exposée par le noeud, vous devez y importer les types définies dans le fichier `types-bundle/types_definition.json`:
+
+![js-app-custom-types](./images/js-app-custom-types.png)
+
 ### Multi-Node Local Testnet
 
 If you want to see the multi-node consensus algorithm in action, refer to

docs/rust-setup.md → docs/setup.md

@@ -3,7 +3,7 @@ title: Installation
 ---
 
 This page will guide you through the steps needed to prepare a computer for development with the
-Substrate Node Template. Since Substrate is built with
+Substrate Node. Since Substrate is built with
 [the Rust programming language](https://www.rust-lang.org/), the first thing you will need to do is
 prepare the computer for Rust development - these steps will vary based on the computer's operating
 system. Once Rust is configured, you will use its toolchains to interact with Rust projects; the