v0.5.3: Fix Commands in Docs, Do Not Use `.mjs`

What's Changed

• docs: poetry install commands by @wesleyboar in #20
• docs: bad command to test "at Specific Revision" by @wesleyboar in #25
• fix: .mjs not supported by nginx by @wesleyboar in #24

Full Changelog: v0.5.2...v0.5.3