v0.18.0

Security

• Escape xml:lang values and CDATA terminators in the feed (GHSA-3gx8-pqcm-38hw, #396)

Development Fixes

• Upgrade to Rake 13 to fix master (#381)
• feat(CI): Add Ruby 3.2/3.3 to the test matrix (#402)
• Fix style offenses (#414)

Documentation

• Fix typos in Readme (#384)

Minor Enhancements

• Icon and logo support with simple tests (#412)