docs: include ics4Wrapper in hostkeeper.NewKeeper ics27 integration…

… docs (#2351) (#2380)

* updating ica integration docs

* Update docs/apps/interchain-accounts/integration.md

Co-authored-by: Carlos Rodriguez <carlos@interchain.io>
(cherry picked from commit d527aa3)

Co-authored-by: Damian Nolan <damiannolan@gmail.com>

docs/apps/interchain-accounts/integration.md

@@ -80,6 +80,7 @@ app.ICAControllerKeeper = icacontrollerkeeper.NewKeeper(
 )
 app.ICAHostKeeper = icahostkeeper.NewKeeper(
 		appCodec, keys[icahosttypes.StoreKey], app.GetSubspace(icahosttypes.SubModuleName),
+		app.IBCKeeper.ChannelKeeper, // may be replaced with middleware such as ics29 fee
 		app.IBCKeeper.ChannelKeeper, &app.IBCKeeper.PortKeeper,
 		app.AccountKeeper, scopedICAHostKeeper, app.MsgServiceRouter(),
 )