Add licensing note to README

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
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 # Astronomy
 
-Resources for Science Olympiad Astronomy
+Resources for Science Olympiad Astronomy. Note that due to the [license](https://github.com/Ta180m/Astronomy/blob/main/LICENSE), **you must publicly release any code that you use from this repository**.
 
 
 ## Guide