Update fetch.bs

Co-authored-by: Domenic Denicola <[email protected]>

Author: noamr

fetch.bs

@@ -8424,7 +8424,7 @@ without relying on a current {{Window}} or {{Worker}}, leave <a for=/>request</a
 <a for=request>referrer</a> to appropriate values instead, e.g. by copying them from the
 <a>environment settings object</a> ahead of time. In these more advanced cases, make sure the
 details of how your fetch handles <cite>Content Security Place</cite> and
-<a for=/>referrer policy</a> are fleshed out. Also make sure you handle concurrency, as callbacks
+<a for=/>referrer policy</a> are fleshed out. Also make sure you handle concurrency, as callbacks (see [[#fetch-elsewhere-fetch]])
 would be posted on a <a>parallel queue</a>. [[!REFERRER]] [[!CSP]]
 
 <p>Think through the way you intend to handle cross-origin resources. Some features may only work in