minor #14163 Update best_practices.rst (94noni)

This PR was submitted for the 5.1 branch but it was merged into the 4.4 branch instead.

Discussion
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Update best_practices.rst

Related to symfony/recipes#797

Commits
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3371108 Update best_practices.rst

Author: javiereguiluz

best_practices.rst

@@ -52,7 +52,8 @@ self-explanatory and not coupled to Symfony:
     ├─ config/
     │  ├─ packages/
     │  └─ services.yaml
-    └─ public/
+    ├─ migrations/
+    ├─ public/
     │  ├─ build/
     │  └─ index.php
     ├─ src/
@@ -63,7 +64,6 @@ self-explanatory and not coupled to Symfony:
     │  ├─ Entity/
     │  ├─ EventSubscriber/
     │  ├─ Form/
-    │  ├─ Migrations/
     │  ├─ Repository/
     │  ├─ Security/
     │  └─ Twig/