updated sys and created publi

publi/node_modules/is-my-json-valid/example.js

@@ -0,0 +1,18 @@
+var validator = require('./')
+
+var validate = validator({
+  type: 'object',
+  properties: {
+    hello: {
+      required: true,
+      type: 'string'
+    }
+  }
+})
+
+console.log('should be valid', validate({hello: 'world'}))
+console.log('should not be valid', validate({}))
+
+// get the last error message by checking validate.error
+// the following will print "data.hello is required"
+console.log('the errors were:', validate.errors)