fix: markdownlint says no bare URLs

Author: honzajavorek

sources/platform/actors/publishing/index.mdx

@@ -30,7 +30,7 @@ If you decide to make your Actor code publicly available on [GitHub](https://git
 
 Naturally, your Actor's code should be open to changes and updates, so don't be afraid of refactoring. However, beware of making changes that could potentially break the Actor for its existing users.
 
-If you plan on making a breaking change, please get in touch with us ahead of time at community@apify.com, and we will help you to communicate the change to your users.
+If you plan on making a breaking change, please get in touch with us ahead of time at [community@apify.com](mailto:community@apify.com), and we will help you to communicate the change to your users.
 
 Also, pay special attention to your Actor's documentation ([README](../../academy/get-most-of-actors/actor-readme)). It should be clear, detailed, and readable. Think of the users, who might not be developers, so try to use simple, easy-to-understand language and avoid technical jargon.