Add link handling to rich-text-to-markdown

Convert <a href="url">text</a> elements to [text](url) markdown
syntax in the htmlToMarkdown function.

https://claude.ai/code/session_018q9Arxy2HrpsyNB13wpwxQ

Author: claude

rich-text-to-markdown.html

@@ -115,7 +115,7 @@
   <h1>Rich Text to Markdown</h1>
 
   <div class="instructions">
-    <strong>Instructions:</strong> Paste rich text below. Bold text will be converted to <code>**markdown bold**</code> and leading spaces will be removed.
+    <strong>Instructions:</strong> Paste rich text below. Bold text will be converted to <code>**markdown bold**</code>, links will be converted to <code>[text](url)</code>, and leading spaces will be removed.
   </div>
 
   <textarea class="paste-area" placeholder="Click here and paste your rich text (Cmd+V or Ctrl+V)..."></textarea>
@@ -345,6 +345,15 @@ <h1>Rich Text to Markdown</h1>
       return `${leadingSpace}**${trimmed}**${trailingSpace}`;
     }
 
+    // Handle links
+    if (tag === 'a') {
+      const href = node.getAttribute('href');
+      if (href && childContent.trim()) {
+        return `[${childContent.trim()}](${href})`;
+      }
+      return childContent;
+    }
+
     // Handle line breaks
     if (tag === 'br') {
       return '\n';