Show email address on button

Author: TreeLin

index.html

@@ -612,7 +612,7 @@ <h3>奔跑的树桩</h3>
       <div class="card contact-card">
         <p>合作、聊天、交换想法，都欢迎来信</p>
         <a class="email-btn" href="mailto:zero917126@qq.com">
-          ✉️ 给我写邮件
+          ✉️ zero917126@qq.com
         </a>
       </div>
     </section>