update docs

Author: wu-clan

docs/.vuepress/data/pricing.ts

@@ -194,6 +194,7 @@ export default {
         'Everything in Open Source',
         'Discord identity badge',
         'Discord private channel',
+        'WeChat group',
         'Priority support',
       ],
     },

docs/.vuepress/locales/en-US.ts

@@ -183,6 +183,7 @@ export default {
         '所有开源版功能',
         'Discord 身份标签',
         'Discord 专属频道',
+        '微信交流群',
         '优先支持',
       ],
     },