Update README.md

Author: VegeChou

README.md

@@ -43,28 +43,28 @@ Please see [FAQ](https://sensoro.zendesk.com/hc/en-us) in [Sensoro](http://www.s
 ## Changelog
 
 - 2.1.3
-    - `Support A0-1.0, B0-1.0, A0-2.0, B0-2.0, B0-2.1, B0-2.2, B0-2.3.`
+    - `Support A0-1.0, B0-1.0, B0-2.0, B0-2.1, B0-2.2, B0-2.3.`
     - Add ENUM `SecureBroadcastInterval`.
     - Change API `writeSecureBroadcastRotationInterval(int)` to `writeSecureBroadcastInterval(SecureBroadcastInterval)`.
 - 2.1.2
-    - `Support A0-1.0, B0-1.0, A0-2.0, B0-2.0, B0-2.1, B0-2.2, B0-2.3.`
+    - `Support A0-1.0, B0-1.0, B0-2.0, B0-2.1, B0-2.2, B0-2.3.`
     - Add API secure broadcast - `writeSecureBroadcastRotationInterval`.
     - Fix calculate accelerometer count bug.
 - 2.1.1
-    - `Support A0-1.0, B0-1.0, A0-2.0, B0-2.0, B0-2.1, B0-2.2.`
+    - `Support A0-1.0, B0-1.0, B0-2.0, B0-2.1, B0-2.2.`
     - **Important upgrade**: Upgrade APIs. For more [click](https://github.com/sensoro/SBK-Android/releases/tag/v2.1.1) here.
     - Fix *ConcurrentModificationException* bug.
 - 2.1
-    - `Support A0-1.0, B0-1.0, A0-2.0, B0-2.0, B0-2.1, B0-2.2.`
+    - `Support A0-1.0, B0-1.0, B0-2.0, B0-2.1, B0-2.2.`
     - Improve the JavaDoc of SDK.
     - Add the version of SDK.
 - 2.0
-    - `Support A0-1.0, B0-1.0, A0-2.0, B0-2.0, B0-2.1, B0-2.2.`
+    - `Support A0-1.0, B0-1.0, B0-2.0, B0-2.1, B0-2.2.`
     - Change Java annotation of SDK from Chinese to English.
     - Support that the hardware of Yunzi is above 2.0.
     - Throw exception when calls `startService`.
 - 1.1
-    - `Support A0-1.0, B0-1.0, A0-2.0, B0-2.0.`
+    - `Support A0-1.0, B0-1.0, B0-2.0.`
     - Support that the hardware of Yunzi is 2.0.
     - Add a value ` ADVERTISING_INTERVAL_1285` of *AdvertisingInterval*.
     - Fix some bugs.