Add example of using style in tagList() #781

Job	Run time
routine / routine	1m 43s
website / pkgdown	1m 36s
R-CMD-check / setup	7s
R-CMD-check / macOS-latest (4.4.0)	2m 19s
R-CMD-check / windows-latest (devel)	3m 7s
R-CMD-check / windows-latest (4.4.0)	8m 11s
R-CMD-check / windows-latest (4.2)	9m 54s
R-CMD-check / windows-latest (4.1)	6m 32s
R-CMD-check / windows-latest (3.6)	6m 3s
R-CMD-check / ubuntu-20.04 (devel)	2m 42s
R-CMD-check / ubuntu-20.04 (4.4.0)	1m 50s
R-CMD-check / ubuntu-20.04 (4.3.3)	1m 43s
R-CMD-check / ubuntu-20.04 (4.2.3)	4m 9s
R-CMD-check / ubuntu-20.04 (4.1.3)	1m 53s
R-CMD-check / ubuntu-20.04 (4.0.5)	2m 9s
	53m 58s

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