Update changeset entry

Author: simolus3

.changeset/wet-cooks-dress.md

@@ -3,3 +3,10 @@
 ---
 
 Use upstream better-sqlite3 dependency instead of the PowerSync fork.
+
+After upgrading:
+
+1. Ensure you no longer depend on the `@powersync/better-sqlite3` package: `npm uninstall @powersync/better-sqlite3`.
+2. Unlike in older versions, the upstream `better-sqlite3` dependency is marked as optional since custom forks
+   are supported too.
+   Use `npm install better-sqlite3` to install it.