Highlight mysql direct access trade-off (#105)

Adds clarity and doesn't surcharge the page

content/doc/addons/mysql/_index.md

@@ -39,12 +39,14 @@ If you need to import a very large dump, please send an email to <support@clever
 
 ## Direct access
 
+{{< callout type="warning">}}
+Keep in mind that using direct access is a trade-off: if you migrate your addon, you will need to generate the hostname and port again, so your application will need to update that environment, while using a proxy does not change anything.
+{{< /callout>}}
+
 All our dedicated MySQL databases are served via a proxy. To reduce the latency you can bypass this proxy by generating direct hostname and port for the addon. You can do it by clicking the "Generate direct hostname and port" on the addon dashboard.
 
 This action will add new environment variables to reach the addon without any proxy.
 
-Keep in mind that usage of direct access is a trade-off: when you migrate your addon, you will need to to generate hostname and port again so your application must update these environment while proxy usage changes nothing.
-
 ## Encryption at rest
 
 Encryption at rest is available on MySQL. You can have more information on the [dedicated page]({{< ref "doc/administrate/encryption-at-rest.md" >}})