fix docs about shouldReplaceHistory

docs/layout/api.html

@@ -35,7 +35,7 @@
 								<li><a href="mithril.route.html" title="A routing utility">m.route</a>
 									<ul>
 										<li><a href="mithril.route.html#defining-routes" title="Defines what routes exist">m.route(rootElement, defaultRoute, routes)</a></li>
-										<li><a href="mithril.route.html#redirecting" title="Redirects to a route">m.route(path, params)</a></li>
+										<li><a href="mithril.route.html#redirecting" title="Redirects to a route">m.route(path, params, replaceHistory)</a></li>
 										<li><a href="mithril.route.html#reading-current-route" title="Read the current route">m.route()</a></li>
 										<li><a href="mithril.route.html#mode-abstraction" title="Routing mode abstraction">m.route(element)</a></li>
 										<li><a href="mithril.route.html#mode" title="Whether routing uses location hash, querystring or pathname">m.route.mode</a></li>

docs/mithril.route.md

@@ -276,7 +276,7 @@ redirects to `http://server/#/dashboard/marysue`
 [How to read signatures](how-to-read-signatures.md)
 
 ```clike
-void route(String path [, any params])
+void route(String path [, any params] [, Boolean shouldReplaceHistory])
 ```
 
 -	**String path**
@@ -287,6 +287,10 @@ void route(String path [, any params])
 
 	Parameters to pass as a querystring
 
+-	**Boolean shouldReplaceHistory**
+
+	If set to true, replaces the current history entry, instead of adding a new one. Defaults to false.
+
 ---
 
 <a name="reading-current-route"></a>