From 4404019a83354125d56003040a5fabb2b36bc1c9 Mon Sep 17 00:00:00 2001
From: hachem <im@hachem.wtf>
Date: Fri, 21 Aug 2026 15:45:41 +0200
Subject: docs: add LICENSE to README

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'README.md')

diff --git a/README.md b/README.md
index 717b035..bf6df12 100644
--- a/README.md
+++ b/README.md
@@ -34,3 +34,8 @@ y_n+
 $$
 
 RK4 has a local truncation error of $O(h^5)$ and a global error of $O(h^4)$, making it suitable for maintaining accurate trajectories without requiring extremely small steps everywhere. Adaptive stepping and early termination are used alongside RK4 to keep the cost of tracing rays manageable. Rays near the black hole receive more computation than rays that are already far from the gravitational field.
+\
+
+## License
+Donut is released under the MIT License.
+The source code may be used, modified, and redistributed freely, including in commercial projects, provided that the original copyright notice and license are retained.
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