Added docstring to a function in hid.py

Author: evaherrada

adafruit_ble/services/standard/hid.py

@@ -248,6 +248,7 @@ def _init_devices(self):
             i += size
 
         def get_report_info(collection, reports):
+            """ Gets info about hid reports """
             for main in collection["mains"]:
                 if "type" in main:
                     get_report_info(main, reports)