Update src/ble.md

Change an to a

Co-authored-by: Paulus Schoutsen <[email protected]>

Author: yinzara

src/ble.md

@@ -28,7 +28,7 @@ If the gadget is unable to connect an error is returned. If the gadget required
 
 The client is able to send an `identify` to the Improv service if it is in the states "Require Authorization" and "Authorized". When received, and enabled, the gadget will identify itself, like playing a sound or flashing a light. It is up to the gadget to decide if and what interaction to pick.
 
-The client is able to send an `device info` to the Improv service if it is in the states "Require Authorization" and "Authorized". When received, and supported, the gadget will return the device information in the RPC response characteristic.
+The client is able to send a `device info` to the Improv service if it is in the states "Require Authorization" and "Authorized". When received, and supported, the gadget will return the device information in the RPC response characteristic.
 
 ## Revision history