diff --git a/scripts/vpython_wrapper.py b/scripts/vpython_wrapper.py
index f747320..6a40da8 100755
--- a/scripts/vpython_wrapper.py
+++ b/scripts/vpython_wrapper.py
@@ -5,6 +5,9 @@
 
 # NB: Do not add a ton of wheels here as it's shared among many programs.
 # Only list significant ones widely used by chromite.lib modules.
+#
+# For info on this syntax, see:
+# https://chromium.googlesource.com/infra/infra/+/HEAD/doc/users/vpython.md#available-wheels
 
 # [VPYTHON:BEGIN]
 # python_version: "3.8"