update repo dialog string

Author: az4521

app/src/main/res/values/strings.xml

@@ -824,7 +824,7 @@ z
 
     <string name="information_empty_repos">You have no additional repos. Tap the plus button to create one for adding external extensions.</string>
     <string name="action_add_repo">Add repo</string>
-    <string name="action_add_repo_message">Add additional repos to Tachiyomi, the format of a repo is \'username/repo\' , with username being the repo owner, and repo being the repo name</string>
+    <string name="action_add_repo_message">Add additional repos to Tachiyomi, the format of a repo is \'username/repo\' , with username being the repo owner, and repo being the repo name. Direct .min.json links to repos are also supported.</string>
     <string name="action_edit_repos">Edit repos</string>
     <plurals name="num_repos">
         <item quantity="one">%d additional repo</item>