update docs

Author: wu-clan

docs/.vuepress/components/Price.vue

@@ -14,11 +14,7 @@
             <p class="card-description">{{ plans.openSource.description }}</p>
           </div>
           <div class="price-section">
-            <div class="current-price">{{ plans.openSource.price.current }} <span class="billing-cycle">/ 年</span>
-            </div>
-            <div v-if="plans.openSource.price.original" class="original-price">
-              <del>{{ plans.openSource.price.original }}</del>
-            </div>
+            <div class="current-price" style="margin-bottom: 59px">免费</div>
           </div>
           <ul class="features-list">
             <li v-for="(feature, index) in plans.openSource.features" :key="index">

docs/.vuepress/data/price.ts

@@ -3,10 +3,6 @@ export const plans = {
     openSource: {
         title: '开源版',
         description: '适合个人开发者和小型项目',
-        price: {
-            current: '￥0',
-            original: '￥0'
-        },
         features: [
             '全部基础功能',
             '全量架构源码',