fuzz: Mention minimizing test-cases more in docs.

Change-Id: I18866d9a69a846ebc5aed73200d643c386717d29
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1776930
Auto-Submit: Darwin Huang <huangdarwin@chromium.org>
Reviewed-by: Victor Costan <pwnall@chromium.org>
Reviewed-by: Darwin Huang <huangdarwin@chromium.org>
Reviewed-by: Abhishek Arya <inferno@chromium.org>
Commit-Queue: Abhishek Arya <inferno@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#692979}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 681de45c9124998399fcdbdd6e5fdd200024826d
1 file changed