Fix the 'discuss' link

[email protected]

Change-Id: I7f8d32c4649bafff69cb8a050b3a73210f29b666
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2161911
Commit-Queue: Wei Li <[email protected]>
Reviewed-by: Wei Li <[email protected]>
Cr-Commit-Position: refs/heads/master@{#761728}
diff --git a/docs/ui/index.md b/docs/ui/index.md
index 12ea5d54..cdf7b44 100644
--- a/docs/ui/index.md
+++ b/docs/ui/index.md
@@ -26,7 +26,7 @@
 Ways to get help.
 
 * [Chat](/docs/ui/ask/index.md#chat)
-* [Discuss](docs/ui/ask/index.md#discuss)
+* [Discuss](/docs/ui/ask/index.md#discuss)
 * [E-mail](/docs/ui/ask/index.md#e_mail)
 
 |||---|||