Merge readme updates and minor code formatting fixes

[mdadighat]

Add developer setup info to readme, add code formatting and linting to run_tests workflow, add code coverage comment to pull requests

[github-actions[bot]]

Coverage Report

File	Stmts	Miss	Cover	Missing
api/core
routes.py	335	72	79%	21, 39, 60, 112–113, 118–119, 177, 186–187, 195, 243, 252–253, 257–258, 316, 325–326, 335–336, 383, 392–393, 397–398, 456, 465–466, 475–476, 548–549, 556–558, 598, 609, 639, 650, 658–675, 729, 797–801, 841, 848–849, 856–868, 974–978, 993–994, 1002
utils.py	26	11	58%	9–16, 40–51
api/core/database
models.py	32	11	66%	13–15, 18, 36–41, 44
tests
conftest.py	15	1	93%	30
TOTAL	533	95	82%

Tests	Skipped	Failures	Errors	Time
10	0 :zzz:	0 :x:	0 :fire:	1.210s :stopwatch: