Editorial: wrap "Content-Type/text/html" in backticks

Fixes #858.

source

@@ -81564,8 +81564,8 @@ State: <OUTPUT NAME=I>1</OUTPUT> <INPUT VALUE="Increment" TYPE=BUTTON O
 
         <p>Otherwise, the result of obtaining the resource for the URL is a <span
         data-x="concept-response">response</span> whose <span
-        data-x="concept-response-header-list">header list</span> consists of <code
-        data-x="">Content-Type</code>/<code>text/html</code> and `<code
+        data-x="concept-response-header-list">header list</span> consists of `<code
+        data-x="">Content-Type</code>`/`<code>text/html</code>` and `<code
         data-x="http-referrer-policy">Referrer-Policy</code>`/<var>settings</var>'s <span>referrer
         policy</span>, whose <span data-x="concept-response-body">body</span> is <var>result</var>,
         and whose <span data-x="concept-response-https-state">HTTPS state</span> is
@@ -118293,6 +118293,7 @@ INSERT INTERFACES HERE
   Alan Plum,
   Alastair Campbell,
   Alejandro G. Castro,
+  Aleksey Shvayka,
   Alex Bishop,
   Alex Nicolaou,
   Alex Rousskov,