[CanReader]

• bump to 0.3.2 and keep the original description

What this changes

Puts the crate description and README tagline back to "A robust deep learning library in Rust with CUDA kernels" and bumps the version to 0.3.2.

Why

#64 replaced that wording by mistake. 0.3.1 went out to crates.io with the replaced description, and crates.io metadata can't be edited once a version is published, so it needs a new version.

How it was verified

• cargo test passes
• cargo clippy --all-targets -- -D warnings is clean
• Ran cuda_parity on a GPU
• Trained an example in --release
• No GPU here, CUDA side not runtime tested

Version and description only. cargo publish --dry-run passes.

Checklist

• Every new or changed backward rule has a gradcheck case
• Every new kernel has a cuda_parity case
• tensor/ops and autograd/ops still mirror each other
• Public items have /// docs