Remove citation info (keep just pointer) in readme

[gwaybio]

Description

I missed updating this in #514 - we shouldn't maintain two citation pointers

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.44%. Comparing base (7fc7752) to head (f47cea5).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #515   +/-   ##
=======================================
  Coverage   94.44%   94.44%           
=======================================
  Files          57       57           
  Lines        3188     3188           
=======================================
  Hits         3011     3011           
  Misses        177      177           

Flag	Coverage Δ
unittests	94.44% <ø> (ø)

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