[GN Docs] Fix typo

s/targe/target

BUG=None

Review-Url: https://codereview.chromium.org/2148593002
Cr-Original-Commit-Position: refs/heads/master@{#404882}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 6af98e7151e6f8846e97a0390bcbe4df7b4150d6
1 file changed
tree: 28f889b01da57efad970d34fcb5fa2eb54414fa0
  1. tools/