diff --git a/README.md b/README.md
index 88ce69227730d77ef204944024379f57ebfe40ca..dbf6b670110ea65931e06dfa69fc1e18b2d12279 100644
--- a/README.md
+++ b/README.md
@@ -2,11 +2,23 @@
 
 ## All the things to know for developping the library
 
-The library needs nodeJS installed and the following node packages installed globally: typescript, karma, tslint. This can be done from the command line:
+The library needs nodeJS installed and the following node packages installed globally: _typescript, karma, tslint_.
+
+This can be done from the command line:
 
 `npm install -g typescript karma tslint`
 
-Then, you can install the necessary packages of the library: 
+### Install the necessary packages of the library:
+
+Clone or update the JalHyd project and in the JalHyd folder, run :
+
+`npm package`
+
+Then, back to the ngHyd project folder, run :
+
+`npm install <path to the JalHyd folder>/jalhyd-<version>.tar.gz`
+
+and then :
 
 `npm install`
 
@@ -16,11 +28,11 @@ Then, you can install the necessary packages of the library:
 `npm run build`
 
 
-### To flag suspicious language usage
+### To run compilation in watch mode as well as application execution in a navigator window
 
-`npm run lint`
+`npm start`
 
 
-### To run compilation in watch mode as well as application exécution in a navigator window
+### To flag suspicious language usage
 
-`npm start`
+`npm run lint`