APNG Encoder v0.3.0

What's Changed

• examples crate version up by @poccariswet in #19
• update image to 0.23.14 by @marius851000 in #20
• Use thiserror instead of failure by @orhun in #21
• Make errors module public by @orhun in #23
• Bump dependencies by @orhun in #24
• Bump image to 0.24 by @Palladinium in #26
• Update project to Rust 2021 edition by @orhun in #28
• Apply clippy suggestions by @orhun in #29
• Update the styling in README.md by @orhun in #30
• Bump the crate version to 0.3.0 (#27) by @orhun in #31

New Contributors

• @marius851000 made their first contribution in #20
• @orhun made their first contribution in #21
• @Palladinium made their first contribution in #26

Full Changelog: v0.2.0...v0.3.0