docs: fix create-mud package name in changeset

.changeset/fuzzy-tools-explain.md

@@ -1,5 +1,5 @@
 ---
-"@latticexyz/create-mud": patch
+"create-mud": patch
 ---
 
 Templates now use an `app` namespace by default, instead of the root namespace. This helps keep the root namespace clear for intentionally root-level things and avoids pitfalls with root systems calling other root systems.