Note for getting more API rate limit:
  1. Go to Personal access tokens page
  2. Press "Generate new token"
  3. Fill "Token description" as you like
  4. Do not check any scope
  5. Press "Generate token"
  6. Copy the displayed token
  7. Open Web Developer Tool and input as following: 
    MicroBench.setCache('auth', { user: 'your user name on github', pass: 'personal access token' });