update logo changeset (#833)

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### Description

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Fixes #

#### Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] This change requires a documentation update

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- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings

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Author: 7w1

.changeset/add-new-logo.md

@@ -4,4 +4,6 @@ default: minor
 
 # Introduce the new Sable logo!
 
+- You may need to reinstall PWAs to recieve the new app icons, if you use them.
+- Our logo is [licensed under CC0](https://github.com/SableClient/Sable/blob/dev/TRADEMARKS.md), aka do whatever you want with it!
 - Also, there's a script for other us or other forks to replace the icon in the future, if needed.