fix: use correct GitHub alert syntax with empty line separator

Co-authored-by: vinceAmstoutz <46444652+vinceAmstoutz@users.noreply.github.com>

Author: Copilot

core/bootstrap.md

@@ -3,8 +3,10 @@
 You may want to run a minimal version of API Platform. This one file runs API Platform (without
 GraphQL, Eloquent, Doctrine MongoDB...). It requires the following Composer packages:
 
-> [!NOTE] This documentation is a work in progress we're working on improving it, in the mean time
-> we declare most of the services manually in the
+> [!NOTE]
+>
+> This documentation is a work in progress we're working on improving it, in the mean time we
+> declare most of the services manually in the
 > [ApiPlatformProvider](https://github.com/api-platform/core/blob/64768a6a5b480e1b8e33c639fb28b27883c69b79/src/Laravel/ApiPlatformProvider.php)
 > it can be source of inspiration.