Deprecated functions `manynet` #22

Job	Run time
Update README.md and Vignettes	5m 12s
Build for macOS-latest (release)	4m 56s
Build for windows-latest (release)	13m 13s
Build for ubuntu-latest (release)	8m 51s
Build pkgdown site	2m 20s
Bump version and release	11s
	34m 43s

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