Closes #206 Change RSPM ref to CRAN #235

Job	Run time
Get R version	1s
Version Bump 🤜🤛	0s
Links / Validate Links	3s
Check / (release)	9m 41s
Check / (devel)	46s
Check / (oldrel)	9m 36s
Documentation	0s
Validation	0s
Man Pages / Roxygen	7m 11s
Code Coverage / Test Coverage	7m 32s
Lint / Lint	1m 5s
Spelling / Spellcheck	56s
Code Style / Code Style	58s
Check Templates / Verify	7m 23s
Code Coverage / Generate badge for coverage	8s
	45m 20s

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