Sort non-transactional statements

Author: bcb

docs/migrations.md

@@ -72,19 +72,19 @@ cause errors if used inside `begin ... commit`. Examples of
 non-transactional statements include:
 
 ```sql
-CREATE EXTENSION
-DROP EXTENSION
-VACUUM
-REINDEX
+ALTER SYSTEM
 CLUSTER
 CREATE DATABASE
-DROP DATABASE
+CREATE EXTENSION
 CREATE ROLE
 CREATE TABLESPACE
-DROP TABLESPACE
-ALTER SYSTEM
 DISCARD ALL
+DROP DATABASE
+DROP EXTENSION
+DROP TABLESPACE
 LOAD
+REINDEX
+VACUUM
 ```
 
 ## 🔄 Nuke Everything