modify README.md

Author: bandit-ibayashi

README.md

@@ -1,9 +1,10 @@
-# Overview
+# StarMgsIO Android SDK Ver 1.5.0
+## Overview
 This package contains StarMgsIO SDK.
 starmgsio.jar is a library for supporting application development for Star scales. Please refer to [StarMgsIO Android SDK document](https://www.star-m.jp/products/s_print/sdk/starmgsio_sdk/manual/android/en/index.html) for detail of usage. 
 
 
-# Scope
+## Scope
 Supported models:
 - MG-S Scale
     - MG-S322
@@ -23,6 +24,6 @@ Supported models:
 Supported OS :<br>
 Android 9.0 - Android 14.0
 
-# Copyright<br>
+## Copyright
 Copyright 2020 - 2023 Star Micronics Co., Ltd. All rights reserved.