Update documentation for xfn->Lambda context injection #6067

Job	Run time
Test standalone binary in ARM ubuntu	1m 59s
Test standalone binary in windows	3m 52s
Static Analyzer - Diff Aware	26s
Test standalone binary in ARM macOS	1m 23s
Test standalone binary in macOS	2m 54s
Build and test (14)	2m 12s
Build and test (16)	2m 8s
Test standalone binary in ubuntu	1m 38s
Build and test (18)	2m 8s
Check licenses	42s
Build and test (20)	1m 53s
Static Analyzer - Non Diff Aware	37s
End-to-end test the package (14)	3m 2s
End-to-end test the package (16)	2m 52s
End-to-end test the package (18)	2m 56s
End-to-end test the package (20)	2m 51s
	33m 33s

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