fixed broken links in guide index

docs/guide/index.md

@@ -32,13 +32,13 @@ Database
 - [Basics](database-basics.md) - Connecting to a database, basic queries, transactions and schema manipulation
 - [Query Builder](query-builder.md) - Querying the database using a simple abstraction layer
 - [ActiveRecord](active-record.md) - The active record ORM, retrieving and manipulatings records and defining relations
-- [Database Migration](migration.md) - Versioning your database with database migrations
+- [Database Migration](console-migrate.md) - Versioning your database with database migrations
 
 Developers Toolbox
 ==================
 
 - [Automatic Code Generation](gii.md)
-- [Debug toolbar and debugger](debugger.md)
+- [Debug toolbar and debugger](module-debug.md)
 - [Error Handling](error.md)
 - [Logging](logging.md)