Update dead link of conversational UI

Author: jorgeig-space

redux-ui-management.md

@@ -105,7 +105,7 @@
  Thoughts on the merits of using the Redux-Form library
 
 - **Conversational sign-up form UI with React and Redux** 
- http://jsforallof.us/2016/09/08/conversational-sign-up-form-ui-with-react-and-redux/ 
+ https://web.archive.org/web/20190715044522/http://jsforallof.us/2016/09/08/conversational-sign-up-form-ui-with-react-and-redux/
  An example of form management with Redux
 
 - **Should you store your form state in Redux?**