Created fsm.update (markdown)

fsm.update.md

@@ -0,0 +1,68 @@
+## Request
+* **Description**: Inquires about the current state of the FSM.
+* **Subscribers**: [FSMHandler](https://github.com/avatao-content/baseimage-tutorial-framework/wiki/FSMHandler)
+
+```json
+{
+    "key": "update",
+    "intent": "control",
+    "scope": "zmq"
+}
+```
+
+***
+
+**Example**:
+```json
+{
+    "key": "fsm.update",
+}
+```
+
+## Response
+* **Description**: Lists information about the FSM's internal state.
+* **Subscribers**: [FSMAware](https://github.com/avatao-content/baseimage-tutorial-framework/wiki/FSMAware)
+
+```json
+{
+    "key": "fsm.update",
+    "intent": "event",
+    "scope": "broadcast"
+}
+```
+
+| Parameter    | Type     | Required           | Description                 |
+| ------------ |:--------:|:------------------:| --------------------------- |
+| *current_state* | `string` | :heavy_check_mark: | Name of the current FSM state. |
+| *in_accepted_state* | `string` | :heavy_check_mark: | Tells whether the FSM is in its final state. On the platform, the challenge is considered finished when this property is true. |
+| *last_event* | `object` | :heavy_check_mark: | Contains the source, destination, trigger keyword and timestamp of the latest transition. |
+| *valid_transitions* | `array` | :heavy_check_mark: | Lists every possible transitions from the current step. |
+
+***
+
+**Example**:
+```json
+{
+    "current_state": "1",
+    "in_accepted_state": false,
+    "intent": "event",
+    "key": "fsm.update",
+    "last_event": {
+        "from_state": "0",
+        "timestamp": "2019-09-10T14:43:35.646400",
+        "to_state": "1",
+        "trigger": "step_1"
+    },
+    "scope": "broadcast",
+    "valid_transitions": [
+        {"trigger": "to_0"},
+        {"trigger": "to_1"},
+        {"trigger": "to_2"},
+        {"trigger": "to_3"},
+        {"trigger": "to_4"},
+        {"trigger": "to_5"},
+        {"trigger": "step_2"},
+        {"trigger": "step_next"}
+    ]
+}
+```