docs: update license link to point to `LICENSE.md` (#892)

Mark created 

The LICENSE file was renamed to LICENSE.md which broke the link in the README.md

Change summary

README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Detailed changes

README.md 🔗 

@@ -483,7 +483,7 @@ We’d love to hear your thoughts on this project. Need help? We gotchu. You can
 
 ## License
 
-[FSL-1.1-MIT](https://github.com/charmbracelet/crush/raw/main/LICENSE)
+[FSL-1.1-MIT](https://github.com/charmbracelet/crush/raw/main/LICENSE.md)
 
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