Show favicons for external links

README.md

@@ -275,6 +275,19 @@ Behaviour:
 
 Scratchpads render the referenced file as wikitext and (when you have edit rights on the host page) provide an inline editor that saves directly to the backing file.
 
+### 7) Link Favicons (automatic)
+
+External links automatically display the favicon of the linked website. This feature:
+
+- Uses DuckDuckGo's favicon service (`icons.duckduckgo.com`)
+- Works on all external links (class `urlextern`)
+- Shows grayscale icons that become colored on hover
+- Browser handles caching; no server-side storage needed
+
+No configuration required. The feature is enabled by default for all external links.
+
+Based on the [linkfavicon plugin](https://github.com/shaoyanmin/linkfavicon) by Shao Yanmin.
+
 
 ## Inline options reference (directory/images)