Closes #36 update readme #51

Job	Run time
Validation	0s
Render README	0s
Documentation	0s
Check / (4.1)	2m 27s
Check / (4.2)	2m 51s
Check / (4.3)	3m 3s
Code Style / Get R version	1s
Spelling / Get R version	1s
Lint / Get R version	1s
Code Coverage / Get R version	1s
Links / Validate Links	4s
Man Pages / Get R version	1s
Code Style / Code Style	1m 34s
Code Coverage / Test Coverage	2m 0s
Lint / Lint	1m 35s
Spelling / Spellcheck	1m 22s
Man Pages / Roxygen	1m 39s
Code Coverage / Generate badge for coverage	4s
	16m 44s

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