doc: document that the Windows hosts file is now respected

For golang#57757.
For golang#61422.

Change-Id: Icbe9a86b43eb0816dc5899a1c14b50ee22db1c5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/548095
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

doc/go1.22.html

@@ -580,7 +580,10 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
     </p>
 
     <p><!-- CL 467335 -->
-      TODO: <a href="https://go.dev/cl/467335">https://go.dev/cl/467335</a>: net: respect hosts file when resolving names for Windows
+      The Go DNS Resolver, used when building the binary with "-tags=netgo",
+      now searches a matching name in the Windows hosts file,
+      located at <code>%SystemRoot%\System32\drivers\etc\hosts</code>,
+      before making a DNS query.
     </p>
   </dd>
 </dl><!-- net -->