tree c049dc6cd0e4b8c1a6b94dd0ca477b829f44ffe6
parent a196fcb4c85fdea160b2b32c3c36486bdebe4daa
author srawlins <srawlins@google.com> 1602632620 -0400
committer Sam Rawlins <sam.rawlins@gmail.com> 1603148033 -0700

Improve steps in null safety README re: build_runner.

PiperOrigin-RevId: 336982432