commit 0da18f20dc7a7530b76817367f5e619488be4c82
Author: kyy <b24053@hanmaceng.co.kr>
Date:   Tue Jun 17 07:10:21 2025 +0000

    Add README.md

diff --git a/README.md b/README.md
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index 0000000..bcb7d6d
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+++ b/README.md
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+서브모듈 vs. 서브트리
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