Update ROADMAP.md

ROADMAP.md

@@ -5,23 +5,27 @@
 - [x] Event payloads
 - [x] Time triggers
 - [x] Promise triggers
-- [ ] Hierarchical state machines
+- [ ] Hierarchical state machines *(in progress)*
 - [ ] Ignoring events
 - [ ] Persistence support
 
 ### Hierarchical state machines
 
 ```javascript
-.state('state1')
-  .on('eventA').transitionTo('state2')
-  .submachine()
-    .rememberLastState()
-    .initialState('substate1')
-      .on('eventB').transitionTo('substate2')
-    .state('substate2')
-      .on('eventC').transitionTo('substate3')
-    .parent()
-.state('state2')
+const submachineConfig = Finity
+  .configure()
+    .initialState('substate2A')
+      .on('event2').transitionTo('substate2B')
+  .getConfig();
+
+const stateMachine = Finity
+  .configure()
+    .initialState('state1')
+      .on('event1').transitionTo('state2')
+    .state('state2')
+      .on('event3').transitionTo('state3')
+      .submachine(submachineConfig)
+  .start();
 ```
 
 ### Ignoring events
@@ -39,7 +43,7 @@ TBD...
 - [x] Global hooks
 - [x] Clarify how guard conditions work
 - [x] Entry, exit, and transition action parameters
-- [ ] Project website
+- [ ] Project website *(in progress)*
 - [ ] Clarify that final states don't need to be explicitly defined
 - [ ] Execution order of entry, exit, and transition actions and global hooks
 - [ ] Recursive events & event queue