docs(README): unify and simplify linkedId section INTER-586

[JuroUhlar]

https://fingerprintjs.atlassian.net/browse/INTER-586

[github-actions]

This PR will create a patch release 🚀

3.0.3 (2024-05-21)

Documentation

• README: unify and simplify linkedId section (67cb56e)

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🔴	Statements	42.4%	53/125
🔴	Branches	22.22%	8/36
🔴	Functions	42.5%	17/40
🔴	Lines	40.5%	49/121

Test suite run success

10 tests passing in 3 suites.

Report generated by 🧪jest coverage report action from 67cb56e

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St	File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
🔴	All files	42.4	22.22	42.5	40.49
🟡	FingerprintJsProAgent.ts	50	40	66.66	50	22-39,69
🟡	FingerprintJsProContext.ts	75	100	0	75	5
🟢	FingerprintJsProProvider.tsx	93.33	50	100	93.33	43
🔴	errors.ts	16	11.11	16	16	8-33,56-249,272-273,319-323,330-364,368
🔴	index.ts	0	0	0	0
🔴	types.ts	0	0	0	0
🟢	useVisitorData.ts	100	100	100	100