Add example of using style in tagList() (#433) #782

Job	Run time
website / pkgdown	1m 43s
R-CMD-check / setup	9s
routine / routine	1m 33s
R-CMD-check / macOS-latest (4.4.0)	2m 24s
R-CMD-check / windows-latest (devel)	3m 34s
R-CMD-check / windows-latest (4.4.0)	9m 0s
R-CMD-check / windows-latest (4.2)	8m 57s
R-CMD-check / windows-latest (4.1)	8m 19s
R-CMD-check / windows-latest (3.6)	5m 53s
R-CMD-check / ubuntu-20.04 (devel)	3m 58s
R-CMD-check / ubuntu-20.04 (4.4.0)	1m 53s
R-CMD-check / ubuntu-20.04 (4.3.3)	2m 23s
R-CMD-check / ubuntu-20.04 (4.2.3)	4m 27s
R-CMD-check / ubuntu-20.04 (4.1.3)	4m 8s
R-CMD-check / ubuntu-20.04 (4.0.5)	4m 6s
	1h 2m 27s

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