aioble/README.md: Fix reference error.

goodspeed34 · William Goodspeed · commit ac175097bf63 · 2025-01-18T10:17:23.000+08:00
Signed-off-by: William Goodspeed &lt;gongzl@stu.hebust.edu.cn&gt;
diff --git a/micropython/bluetooth/aioble/README.md b/micropython/bluetooth/aioble/README.md
@@ -123,7 +123,7 @@ while True:
             appearance=_GENERIC_THERMOMETER,
             manufacturer=(0xabcd, b"1234"),
         )
-    print("Connection from", device)
+    print("Connection from", connection.device)
 ```
 
 #### Update characteristic value: (Server)

Original file line number	Diff line number	Diff line change
`@@ -123,7 +123,7 @@ while True:`
`123`	`123`	`appearance=_GENERIC_THERMOMETER,`
`124`	`124`	`manufacturer=(0xabcd, b"1234"),`
`125`	`125`	`)`
`126`		`- print("Connection from", device)`
	`126`	`+ print("Connection from", connection.device)`
`127`	`127`	```
`128`	`128`
`129`	`129`	`#### Update characteristic value: (Server)`