Update monica/license.md

Co-authored-by: Tianon Gravi <[email protected]>

monica/license.md

@@ -1 +1 @@
-View [license information](https://github.com/monicahq/monica/blob/main/LICENSE) for the software contained in this image.
+View [license information](https://github.com/monicahq/monica/blob/main/LICENSE.md) for the software contained in this image.