Update README.rst

README.rst

@@ -73,7 +73,7 @@ Board                 Type     Module/Package      Status   Notes
 ===================== ======== =================== ======== ==================================================
 Arduino Firmata       remote   ``arduino.firmata`` level 1  requires `firmata protocol`_ on any Arduino board
 Arduino Yún           on-board ``arduino.yun``     level 2  requires `Bridge sketch`_ on the Arduino Yún
-BeagleBone Black      on-board ``bbb``             experim.
+BeagleBone Black      on-board ``bbb``             level 1  requires `Adafruit_BBIO`_ on the BeagleBone Black
 Intel Galileo Gen 2   on-board ``intel.galileo``   level 2  requires Intel IoT Dev Kit `mraa`_ library
 Intel Edison          on-board ``intel.edison``    level 1  requires Intel IoT Dev Kit `mraa`_ library
 LinkSprite pcDuino    on-board ``pcduino``         level 1