给小站安排上OpenSearch

刚刚在V站看到了这个https://www.v2ex.com/t/685678看到下面给出了相关的实现方法https://developer.mozilla.org/en-US/docs/Web/OpenSearchhttps://developer.mozilla.org/zh-CN/docs/Mozilla/Add-ons/Creating_OpenSearch_plugins_for_...