v1.8.0

What's Changed

• Add status icons to the readme by @alan-cooney in #415
• Improve attention masking and key-value caching. by @UFO-101 in #386
• Remove Python 3.7 support by @alan-cooney in #423
• Update docs to show prepend_bos and padding_side are optional by @UFO-101 in #418
• Add Python 3.11 Support by @alan-cooney in #425
• Return the current residual when stop_at_layer is not None. by @UFO-101 in #420
• Add contributing instructions by @alan-cooney in #426

Full Changelog: v1.7.0...v1.8.0