Advanced Node and Express - Set up Passport. instructions missing for session()

[nikrb]

Describe the bug

challenge is missing instructions to include passport.session() so challenge fails

To Reproduce

Steps to reproduce the behavior:

1. Go to challenge
2. Follow instrutions
3. challenge fails as passport.session() is missing

Expected behavior

expect challenge to pass

Screenshots

n/a

Desktop (please complete the following information):

• OS: ubuntu xenial
• Browser firefox
• Version 61.0.1 (64-bit)

Additional context