Update fetch.bs

Co-authored-by: Anne van Kesteren <[email protected]>

Author: noamr

fetch.bs

@@ -3862,7 +3862,7 @@ the request.
    "<code>pending</code>".
 
    <li><p>Let <var>onPreloadedResponseAvailable</var> be an algorithm that runs the following
-   step given a <a for=/>response</a> <var>response</var>: Set <var>fetchParams</var>'s
+   step given a <a for=/>response</a> <var>response</var>: set <var>fetchParams</var>'s
    <a for="fetch params">preloaded response candidate</a> to <var>response</var>.
 
    <li><p>Let <var>foundPreloadedResource</var> be the result of invoking