README: add funding link #277

Job	Run time
Quick test (5.4, v1, ubuntu-latest)	11m 38s
Quick test (5.4, v2, ubuntu-latest)	2m 6s
Quick test (7.2, v1, ubuntu-latest)	19m 50s
Quick test (7.2, v1, windows-latest)	18m 52s
Quick test (7.2, v2, ubuntu-latest)	2m 14s
Quick test (7.2, v2, windows-latest)	9m 22s
Quick test (latest, v1, ubuntu-latest)	16m 53s
Quick test (latest, v1, windows-latest)	31m 36s
Quick test (latest, v2, ubuntu-latest)	1m 43s
Quick test (latest, v2, windows-latest)	7m 34s
Quick test (5.5, v2, windows-latest)	11m 11s
Quick test (5.6, v1, windows-latest)	30m 34s
	2h 43m 33s

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