Link to the autoroller configuration directory in the wrangling doc.

BUG=angleproject:1944

Change-Id: I3f6e50fbc93948416c32070418a4f24a51a3c1bd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1947452
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
diff --git a/infra/ANGLEWrangling.md b/infra/ANGLEWrangling.md
index 4088fab..f40ebc1 100644
--- a/infra/ANGLEWrangling.md
+++ b/infra/ANGLEWrangling.md
@@ -88,6 +88,9 @@
 Please ensure these rollers are also healthy and unblocked. You can trigger manual rolls using the dashboards
 to land high-priority changes.
 
+The autoroller configurations live in the [skia/buildbot repository](https://skia.googlesource.com/buildbot/)
+in the [autoroll/config](https://skia.googlesource.com/buildbot/+/master/autoroll/config) folder.
+
 ## Task 4: ANGLE Standalone Testing
 
 See more detailed instructions on by following [this link](README.md).