From ea9a904b7250ece017144c0d25a1569714a792b6 Mon Sep 17 00:00:00 2001
From: Andrew Leech <andrew@alelec.net>
Date: Fri, 1 Apr 2022 14:28:35 +1100
Subject: [PATCH] docs/reference/manifest: Add link to details about opt-level
 for freeze.

---
 docs/reference/manifest.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/reference/manifest.rst b/docs/reference/manifest.rst
index 078c4c7cf6..b756de47ed 100644
--- a/docs/reference/manifest.rst
+++ b/docs/reference/manifest.rst
@@ -57,7 +57,7 @@ Freezing source code
     directory then all files in that directory will be frozen.
 
     *opt* is the optimisation level to pass to mpy-cross when compiling ``.py``
-    to ``.mpy``.
+    to ``.mpy``.  These levels are described in :func:`micropython.opt_level`.
 
 .. function:: freeze_as_str(path)