From d2ffb24d0a3181d107f80df76570c04e010833ed Mon Sep 17 00:00:00 2001
From: Cliff Click <cliffc@acm.org>
Date: Mon, 21 Sep 2026 16:26:15 -0700
Subject: move the graph visualizer into shared code

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'README.md')

diff --git a/README.md b/README.md
index 9698e35a..38a74322 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,9 @@ The Simple language is styled after a subset of C or Java.
 
 ## Building across chapters
 
+The optional [interactive graph viewer](graph/README.md) is shared in `graph/`.
+Chapters 18–25 launch it with `make view` from the chapter directory.
+
 The top-level Makefile runs each chapter's `tests`, `tags` (also `tag`),
 `release`, or `lib` target. Start with `make lib` on a fresh checkout, then
 `make tests`. 
-- 
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