TODO.md

Summary

Maintainability
Test Coverage
##TODO:

  1. cache the api result
  2. <del>add a loading spiner</del>
  3. add muti tab for muti jira and muti jql
  4. include `vue-route` for muti tab
  5. provide more tips for new users
  6. <del>jira login status and requirement</del>
  7. switch ticket status