Comment coverage report on PR and update publication list in README

[mcw92]

This tiny PR adds an action to the test workflow that comments the coverage report on a PR. In addition, it introduces an updated publication list in the README.

Fixes #164.

[github-actions]

Name	Stmts	Miss	Cover	Missing
propulate/__init__.py	15	2	87%	6-7
propulate/_globals.py	6	0	100%
propulate/islands.py	83	5	94%	135, 170, 178, 211, 217
propulate/migrator.py	182	15	92%	200, 240, 268-288, 434-441
propulate/pollinator.py	175	10	94%	186, 317, 353, 355-359, 370, 420-424
propulate/population.py	121	14	88%	43, 60, 85-86, 103, 112, 126, 131, 148, 156, 160, 170, 204, 247
propulate/propagators/__init__.py	6	0	100%
propulate/propagators/base.py	101	16	84%	68, 96, 148, 258, 263-268, 339, 393, 446, 520, 523-526
propulate/propagators/cmaes.py	188	22	88%	229-237, 244-246, 262-269, 336, 370, 395, 761, 807-808
propulate/propagators/ga.py	115	49	57%	61, 92-94, 155-167, 183-203, 263, 343, 401, 417-423, 465-466, 482-496
propulate/propagators/nm.py	80	0	100%
propulate/propagators/pso.py	120	30	75%	144, 151-153, 340, 523, 553, 559-560, 616-621, 642-673
propulate/propulator.py	283	29	90%	143-145, 187-190, 258-259, 360, 372, 415-416, 437, 439-443, 511-512, 538-539, 567, 574-575, 624, 631-633
propulate/surrogate.py	138	26	81%	42, 62, 80, 104, 124, 142, 290-292, 461, 465, 476-488, 550, 553, 557, 561, 567, 584
propulate/utils/__init__.py	37	3	92%	79, 139-140
propulate/utils/benchmark_functions.py	137	31	77%	586, 609-683
TOTAL	1787	252	86%

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.89%. Comparing base (5bf6e70) to head (7c5b720).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #165   +/-   ##
=======================================
  Coverage   85.89%   85.89%           
=======================================
  Files          16       16           
  Lines        1787     1787           
=======================================
  Hits         1535     1535           
  Misses        252      252           

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