Update fetch.bs

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

Author: noamr

fetch.bs

@@ -3035,7 +3035,7 @@ boolean <var>credentials</var>, run these steps:
 
  <li>
   <p><a>Check CSP for preemptive operation</a> with <var>environment</var> and <var>url</var>. If
-  that returns <b>allowed</b>, <a>Obtain a connection</a> with <var>key</var>, <var>url</var> and
+  that returns <b>allowed</b>, <a>obtain a connection</a> with <var>key</var>, <var>url</var> and
   <var>credentials</var>.
 
   <p class=note>This connection is obtained but not used directly. It will remain in the