Update app.go

app.go

@@ -638,7 +638,7 @@ func (app *App) GetRoute(name string) Route {
 	return Route{}
 }
 
-// GetRoutes Get all routes,when filterUse equal to true.it will filter the routes registered by the middleware.
+// GetRoutes Get all routes, when filterUse equal to true. it will filter the routes registered by the middleware.
 func (app *App) GetRoutes(filterUse bool) []Route {
 	var rs []Route
 	for _, routes := range app.stack {