fix: simplify step 2 wording

Author: pc-study

download.html

@@ -157,7 +157,7 @@ <h1 data-i18n="dlTitle">下载中心</h1>
     <div class="dl-step">
       <div class="dl-step-num">2</div>
       <div class="dl-step-title">添加作者微信</div>
-      <div class="dl-step-desc">凭付款凭证添加作者微信<br><span style="font-family:var(--mono);font-size:.75rem;color:var(--accent2)">微信：Lucifer-0622</span></div>
+      <div class="dl-step-desc">添加作者微信沟通<br><span style="font-family:var(--mono);font-size:.75rem;color:var(--accent2)">微信：Lucifer-0622</span></div>
     </div>
     <div class="dl-step">
       <div class="dl-step-num">3</div>