Update schemas and format the JS example

examples/publisher-node.js

@@ -1,31 +1,34 @@
-const http = require('http');
-const querystring = require('querystring');
+const http = require("http");
+const querystring = require("querystring");
 
-
-const demoJwt = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJtZXJjdXJlIjp7InN1YnNjcmliZSI6WyJmb28iLCJiYXIiXSwicHVibGlzaCI6WyJmb28iXX19.afLx2f2ut3YgNVFStCx95Zm_UND1mZJ69OenXaDuZL8';
+const demoJwt =
+  "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJtZXJjdXJlIjp7InN1YnNjcmliZSI6WyJmb28iLCJiYXIiXSwicHVibGlzaCI6WyJmb28iXX19.afLx2f2ut3YgNVFStCx95Zm_UND1mZJ69OenXaDuZL8";
 
 const postData = querystring.stringify({
-    'topic': 'http://localhost:3000/demo/books/1.jsonld',
-    'data': JSON.stringify({ key: 'updated value' }),
+  topic: "http://localhost:3000/demo/books/1.jsonld",
+  data: JSON.stringify({ key: "updated value" }),
 });
 
-const req = http.request({
-    hostname: 'localhost',
-    port: '3000',
-    path: '/.well-known/mercure',
-    method: 'POST',
+const req = http.request(
+  {
+    hostname: "localhost",
+    port: "3000",
+    path: "/.well-known/mercure",
+    method: "POST",
     headers: {
-        Authorization: `Bearer ${demoJwt}`,
-        'Content-Type': 'application/x-www-form-urlencoded',
-        'Content-Length': Buffer.byteLength(postData),
-    }
-}, (res) => {
+      Authorization: `Bearer ${demoJwt}`,
+      "Content-Type": "application/x-www-form-urlencoded",
+      "Content-Length": Buffer.byteLength(postData),
+    },
+  },
+  (res) => {
     console.log(`Status: ${res.statusCode}`);
     console.log(`Headers: ${JSON.stringify(res.headers)}`);
-});
+  }
+);
 
-req.on('error', (e) => {
-    console.error(`An error occurred: ${e.message}`);
+req.on("error", (e) => {
+  console.error(`An error occurred: ${e.message}`);
 });
 
 req.write(postData);