Version 0.2.0 release

The release includes crates corresponding to hinoko library v0.8.0.
https://github.com/takaswie/libhinoko/releases/tag/v0.8.0
update workspace README

This commit updates workspace README for v0.2.0 release.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
1 file changed