Mere CLI v0.5.20

What's Changed

• Rewrite landing page with Google writing style by @a-github-name in #78
• Test real Business workspace context and credential redaction by @a-github-name in #79
• Release 0.5.20 with Business site unpublish and workspace reporting by @a-github-name in #80

Full Changelog: v0.5.19...v0.5.20