devdocs/public/opensearch.xml

<?xml version="1.0" encoding="UTF-8"?>
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/" xmlns:moz="http://www.mozilla.org/2006/browser/search/">
  <ShortName>DevDocs</ShortName>
  <Description>Search API documentation</Description>
  <Tags>devdocs</Tags>
  <Url type="text/html" method="get" template="https://devdocs.io/#q={searchTerms}"/>
  <Image height="16" width="16" type="image/vnd.microsoft.icon">https://devdocs.io/favicon.ico</Image>
  <Image height="64" width="64" type="image/x-icon">https://devdocs.io/images/icon-64.png</Image>
  <InputEncoding>UTF-8</InputEncoding>
  <moz:SearchForm>https://devdocs.io</moz:SearchForm>
  <Url type="application/opensearchdescription+xml" rel="self" template="https://devdocs.io/opensearch.xml"/>
</OpenSearchDescription>