Update README.md
Updates README.md a little.
Adds helpful comments on module development
Update README.md
Adds both axis.
Revert "Adds both axis."

This reverts commit f4a3f67fcb9686dadbe0ee6cf6269ee79b1a8675.
Merge branch 'master' of https://github.com/2xAA/modV-alpha-
Adds both axis.
Adds both axis.