Fix grammar in "phone home" section.

Co-authored-by: David Chadwick <[email protected]>

index.html

@@ -1042,7 +1042,7 @@ <h3>"Phoning Home" Considered Harmful</h3>
 
       <p>
 <a>Verifiers</a> are urged to not "phone home" in ways that will create
-privacy violations. When retrieving content that is linked to from a
+privacy violations. When retrieving content that is linked from a
 <a>verifiable credential</a>, using mechanisms such as [[[?OHTTP]]] and
 aggressively caching results can improve the privacy characteristics of the
 ecosystem.