Make testing function more solid
Merge pull request #153 from mojotech/cs/solid-tests

Make testing function more solid
Update center test
Add column test
Add cycle test
Clean up README

Looked like Jeet was curated by Psst We're Hiring Inc.
Merge pull request #154 from mojotech/cs/more-tests

Cs/more tests
Namespace existing tests correctly
Add span test
Add span offset test