v0.3.2

• 9ac9560 chore: bump versions
• c0fb124 docs: add docs.rs badge
• 702d780 docs: add documentation for attribute macro
• 902160c docs: add link to benchmark
• 7fcf0fc docs: add table of contents
• 3f1a307 docs: choose more proper terms
• 89f0cae docs: restructure the usage guide
• 1e4a33f docs: update crate version
• cc782bd refactor: apply rustfmt
• 0f8b329 refactor: fix clippy warnings
• 4981055 refactor: fix clippy warnings
• f81b51c test: do benchmark with more precise categories
• e40f3e9 test: use isolated test env for benchmark