v4.0.0-2

• [cli] Tests now run against changed flow version (#4406) 38bb57b
• [docs] add docs to contributing md (#4404) f24c8f2
• [CLI] merge v4 branch into main (#4385) 0dd403d
• [docs] Fix jsx env code sample (#4401) e4ff154

v4.0.0-1...v4.0.0-2