Add links to Stackhero pages

Author: Bacto

README.md

@@ -1,4 +1,17 @@
-# Mercure Hub: getting started
+# Mercure-Hub: getting started
+
+## How to send data from Node.js to Mercure-Hub and receive them in the browser
+
+You can find here some examples of Node.js code to send data to a Mercure-Hub server.
+
+These examples are designed to run with a Stackhero Mercure-Hub service.
+You'll more informations about Stackhero here:
+- [Mercure-Hub cloud](https://www.stackhero.io/en/services/Mercure-Hub/benefits)
+- [Mercure-Hub pricing](https://www.stackhero.io/en/services/Mercure-Hub/pricing)
+- [Mercure-Hub documentations](https://www.stackhero.io/en/services/Mercure-Hub/documentations)
+
+
+## How to use
 
 ![Screenshot](./screenshot.png)
 
@@ -7,14 +20,14 @@ First you have to create a Mercure Hub service on Stackhero.
 In Stackhero's configuration, allow "anonymous subscribers" to let the client connect to topics without authentication.
 
 
-## Front end
+### Front end
 
 In `frontend/susbcriber.html`, fill the `endpoint` (domain name of Stackhero's service).
 
 Then open the file `susbcriber.html` in your browser.
 
 
-## Back end
+### Back end
 
 Fill the configuration informations in `backend/.env-example` and rename the file to `.env`.
 Then start the server with `npm run start`.