fix(bench): change names of citation intros to contents

[lwaekfjlk]

Closes #

📑 Description

✅ Checks

• My pull request adheres to the code style of this project
• My code requires changes to the documentation
• I have updated the documentation as required
• All the tests have passed
• Branch name follows type/descript (e.g. feature/add-llm-agents)
• Ready for code review

ℹ Additional Information

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.

Project coverage is 78.02%. Comparing base (eebaf64) to head (f60f5de).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
research_bench/proposal_writing.py	0.00%	4 Missing ⚠️
research_bench/crossbench.py	0.00%	1 Missing ⚠️
research_bench/mlbench.py	0.00%	1 Missing ⚠️

@@            Coverage Diff             @@
##             main     #800      +/-   ##
==========================================
- Coverage   78.05%   78.02%   -0.04%     
==========================================
  Files          68       68              
  Lines        3071     3071              
==========================================
- Hits         2397     2396       -1     
- Misses        674      675       +1     

Files with missing lines	Coverage Δ
research_bench/crossbench.py	0.00% <0.00%> (ø)
research_bench/mlbench.py	0.00% <0.00%> (ø)
research_bench/proposal_writing.py	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes