Update literature-review.ipynb to fix possible copy-and-paste error

[xtophs]

Clarified tasks of the Report Agent

Why are these changes needed?

Minor issue. Documentation referencing the stock agent from another sample

Related issue number

N/A

Checks

• [ X] I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://microsoft.github.io/autogen/docs/Contribute#documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• [ X] I've made sure all auto checks have passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.08%. Comparing base (92941c6) to head (a169aff).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5214   +/-   ##
=======================================
  Coverage   70.08%   70.08%           
=======================================
  Files         179      179           
  Lines       11619    11619           
=======================================
  Hits         8143     8143           
  Misses       3476     3476           

Flag	Coverage Δ
unittests	70.08% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.