update docs for crown

Signed-off-by: Andrey Parfenov <a1994ndrey@gmail.com>

Author: Andrey1994

docs/SupportedBoards.rst

@@ -487,7 +487,11 @@ Neurosity
 Notion 1
 ~~~~~~~~~
 
-`Notion website <https://neurosity.co/>`_
+.. image:: https://live.staticflickr.com/65535/51302873810_715f51b408.jpg
+    :width: 500px
+    :height: 353px
+
+`Neurosity website <https://neurosity.co/>`_
 
 `Link to Neurosity Tutorial <https://dev.to/neurosity/using-brainflow-with-the-neurosity-headset-2kof>`_
 
@@ -513,13 +517,18 @@ Board Spec:
 Notion 2
 ~~~~~~~~~
 
-`Notion website <https://neurosity.co/>`_
+.. image:: https://live.staticflickr.com/65535/51302045358_b375380804.jpg
+    :width: 500px
+    :height: 353px
+
+
+`Neurosity website <https://neurosity.co/>`_
 
 `Link to Neurosity Tutorial <https://dev.to/neurosity/using-brainflow-with-the-neurosity-headset-2kof>`_
 
 To choose this board in BoardShim constructor please specify:
 
-- board_id: 14
+- board_id: 23
 - optional: Serial Number field of BrainFlowInputParams structure, important if you have multiple devices in the same place
 
 Supported platforms:
@@ -536,6 +545,36 @@ Board Spec:
 - sampling rate: 250
 - communication: UDP BroadCast
 
+Crown
+~~~~~~~~~
+
+.. image:: https://live.staticflickr.com/65535/51301110182_9d05de3948.jpg
+    :width: 500px
+    :height: 353px
+
+`Neurosity website <https://neurosity.co/>`_
+
+`Link to Neurosity Tutorial <https://dev.to/neurosity/using-brainflow-with-the-neurosity-headset-2kof>`_
+
+To choose this board in BoardShim constructor please specify:
+
+- board_id: 23
+- optional: Serial Number field of BrainFlowInputParams structure, important if you have multiple devices in the same place
+
+Supported platforms:
+
+- Windows
+- Linux
+- MacOS
+
+*Note: On Windows you may need to disable firewall to allow broadcast messages.*
+
+Board Spec:
+
+- num eeg channels: 8
+- sampling rate: 256
+- communication: UDP BroadCast
+
 OYMotion
 ---------