Update index.html

Author: higashi000

index.html

@@ -43,7 +43,7 @@ <h2>An International Vim Conference</h2>
 
 
       <section id="main_content">
-        <a class="to-year" href='./2025/'>VimConf 2025</a>
+        <a class="to-year" href='./2025/'>VimConf 2025 mini</a>
         <a class="to-year" href='./2024/'>VimConf 2024</a>
         <a class="to-year" href='./2023/'>VimConf 2023 tiny</a>
         <a class="to-year" href='./2020/'>VimConf 2020 (Canceled)</a>