gopls/doc: fix 'Report the issue' bad link

Change-Id: Ie31d1f375ea93840926d23aef5232ccb77b883a3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214537
Reviewed-by: Heschi Kreinick <heschi@google.com>
diff --git a/gopls/doc/troubleshooting.md b/gopls/doc/troubleshooting.md
index 9e1104a..3d8efe3 100644
--- a/gopls/doc/troubleshooting.md
+++ b/gopls/doc/troubleshooting.md
@@ -12,7 +12,7 @@
 
 1. Make sure your `gopls` is [up to date](user.md#installing).
 1. Check the [known issues](status.md#known-issues).
-1. [Report the issue](file-an-issue).
+1. [Report the issue](#file-an-issue).
 
 ## File an issue