From 467a28e0c6d360bc690ce8706c752ee65cf3fe14 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Fri, 18 Jul 2025 23:13:25 +0800
Subject: [PATCH] feat: update readme

---
 README.md | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 6015000..02a1f1e 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,10 @@
 <br>
 
 Mathematics:
-- https://github.com/OI-wiki/OI-wiki
-- https://github.com/valeman/Awesome_Math_Books
-- https://kska32.github.io/ebooks/
-- https://github.com/apachecn/huazhang-math-book
+- Software
+    - https://www.sagemath.org/
+- Books
+    - https://github.com/OI-wiki/OI-wiki
+    - https://github.com/valeman/Awesome_Math_Books
+    - https://kska32.github.io/ebooks/
+    - https://github.com/apachecn/huazhang-math-book