Synchronize articles to wechat official account.
If you need to synchronize to more other platforms, install plugin: https://wordpress.org/plugins/a-synchronization
Now we support:
* Sync post content to wechat OA material
* Convert images in post to wechat OA material
* Convert link in post to wechat OA material
* Sync post audio to wechat OA material
* Keep the video when update wechat OA article
