Update favicon

So that the engine update does not overwrite the favicon.ico file of your site.

readme.md

@@ -55,6 +55,10 @@ P.S. If you see the contents of the file in both cases, then something went wron
 * Note: Root must point to the [**public/**](https://github.com/forkbb/forkbb/tree/master/public) directory.
 * Note: The **index.dist.php** file does not need to be renamed.
 
+## Favicon
+* You can rename public/favicon48.ico file to public/favicon.ico
+* You can create your own favicon file and copy it to public/favicon.ico
+
 ## Links
 
 * Homepage: https://forkbb.ru/