修改名称，优化

miniprogram/pages/index/index.json

@@ -1,4 +1,4 @@
 {
     "usingComponents": {},
-    "navigationBarTitleText": "我们去哪聚"
+    "navigationBarTitleText": "点线得面"
 }

miniprogram/pages/index/index.wxml

@@ -1,7 +1,7 @@
 <view class="container">
   <view class="header">
-    <view class="title">我们去哪聚</view>
-    <view class="subtitle">找到你们的完美聚会点</view>
+    <view class="title">点线得面</view>
+    <view class="subtitle">找到大家的聚会好去处</view>
     <button class="primary-btn" bindtap="onCreateRoom">发起聚会</button>
   </view>
 
@@ -50,6 +50,6 @@
   </view>
 
   <view class="desc-area">
-    <view class="desc">分享给好友，共同寻找中间点</view>
+    <view class="desc">分享给好友，共同寻找聚会好去处</view>
   </view>
 </view>