Tests

doc: formatting #49

Job	Run time
ubuntu-latest w/ bindgen (R-devel rust-stable )	2m 16s
windows-latest (R-release rust-stable-msvc)	6m 20s
macOS-latest w/ bindgen (R-devel rust-stable )	3m 22s
windows-latest (R-devel rust-stable-msvc)	6m 19s
windows-latest w/ bindgen (R-release rust-stable-msvc x86_64-pc-windows-gnu)	5m 41s
windows-latest (R-oldrel rust-stable-msvc)	10m 43s
windows-latest w/ bindgen (R-devel rust-stable-msvc x86_64-pc-windows-gnu)	4m 15s
macOS-latest (R-release rust-stable)	2m 47s
windows-latest w/ bindgen (R-release rust-nightly-msvc x86_64-pc-windows-gnu)	5m 12s
ubuntu-latest (R-release rust-stable)	58s
windows-latest w/ bindgen (R-oldrel rust-nightly-msvc x86_64-pc-windows-gnu)	8m 52s
ubuntu-latest (R-release rust-nightly)	1m 33s
ubuntu-latest (R-devel rust-stable)	1m 58s
ubuntu-latest (R-oldrel rust-stable)	2m 1s
	1h 2m 17s

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