What's Changed
* http: validate HTTP version by ShogunPanda in https://github.com/nodejs/llhttp/pull/157
* Update README.md by MrThanlon in https://github.com/nodejs/llhttp/pull/129
* Update README.md by ho-229 in https://github.com/nodejs/llhttp/pull/156
* Fix some typos by sgallagher in https://github.com/nodejs/llhttp/pull/159
* improve Makefile install by hugy718 in https://github.com/nodejs/llhttp/pull/155
New Contributors
* ShogunPanda made their first contribution in https://github.com/nodejs/llhttp/pull/157
* MrThanlon made their first contribution in https://github.com/nodejs/llhttp/pull/129
* ho-229 made their first contribution in https://github.com/nodejs/llhttp/pull/156
* sgallagher made their first contribution in https://github.com/nodejs/llhttp/pull/159
* hugy718 made their first contribution in https://github.com/nodejs/llhttp/pull/155
**Full Changelog**: https://github.com/nodejs/llhttp/compare/v6.0.8...v6.0.9