Fixed typo

Author: rimi-itk

README.md

@@ -46,7 +46,7 @@ Or get it directly from a cdn:
  <script>
  ConferenceApp.render({
  element: document.getElementById('app'),
- basename: '/my-conference,
+ basename: '/my-conference',
  // Url to conference api.
  url: '…'
  })