* feat(image): throw if no `alt` is provided
* chore: add changeset
* docs(image): update README
* updated alt text stuff throughout
* fixing with-mdx test suite
* warn for missing alt text, will throw an error in a future release
* final README tweaks
Co-authored-by: Tony Sullivan <tony.f.sullivan@outlook.com>
Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>
