v0.5.6

What's Changed

• fix(store): raft commit ahead of stable entries by @ifplusor in #369
• feat: gateway supports batch write by @wenfengwang in #359
• Update readme by @JieDing in #371
• feat(store): raft support propose callback by @ifplusor in #370

Full Changelog: v0.5.5...v0.5.6