added server example.

Author: mcollina

server.js

@@ -0,0 +1,42 @@
+'use strict'
+
+const http = require('http')
+
+const stringify = require('.')({
+  type: 'object',
+  properties: {
+    hello: {
+      type: 'string'
+    },
+    data: {
+      type: 'number'
+    },
+    nested: {
+      type: 'object',
+      properties: {
+        more: {
+          type: 'string'
+        }
+      }
+    }
+  }
+})
+
+const server = http.createServer(handle)
+
+function handle (req, res) {
+  const data = {
+    hello: 'world',
+    data: 42,
+    nested: {
+      more: 'data'
+    }
+  }
+  if (req.url === '/JSON') {
+    res.end(JSON.stringify(data))
+  } else {
+    res.end(stringify(data))
+  }
+}
+
+server.listen(3000)