doc: update readme

README.md

@@ -1,20 +1,61 @@
-# [WeChatOcr](https://github.com/ZGGSONG/WeChatOcr/)
+# [WeChatOcr](https://github.com/ZGGSONG/WeChatOcr/)
 
 [![Language](https://img.shields.io/badge/language-C%23-blue.svg?style=flat-square)](https://github.com/ZGGSONG/WeChatOcr/search?l=C%23&o=desc&s=&type=Code)
 
 Description
 
-<!--### Nuget
+### Nuget
 
 [![NuGet](https://img.shields.io/nuget/dt/WeChatOcr.svg?style=flat-square&label=WeChatOcr)](https://www.nuget.org/packages/WeChatOcr/)
 
 ```
-Install-Package WeChatOcr-
-```-->
+Install-Package WeChatOcr
+```
 
 ### Usage
 
 - [WeChatOcr](./src/WeChatOcr/README.md)
+- Example Code
+
+```cs
+var weChatPath = @"D:\Apps\WeChat\[3.9.12.11]";	//Your WeChat installation directory
+//1. image file
+var imgPath = @"C:\Users\admin\Desktop\test.png";	//Your image file path
+//2. image bytes
+var imgBytes = new Byte[] {};	//Your image binary data
+using var ocr = new ImageOcr(weChatPath);
+ocr.Run(imgPath,	//imgPath or imgBytes
+(path, result) =>
+{
+	try
+	{
+		if (result == null) return;
+		var list = result?.OcrResult?.SingleResult;
+		if (list == null)
+		{
+			//避免重复触发
+			_tcs.SetResult("WeChatOCR get result is null");
+			return;
+		}
+
+		var sb = new StringBuilder();
+		for (var i = 0; i < list?.Count; i++)
+		{
+			if (list[i] is not { } item || string.IsNullOrEmpty(item.SingleStrUtf8))
+				continue;
+
+			sb.AppendLine(item.SingleStrUtf8);
+		}
+
+		_tcs.SetResult(sb.ToString());
+	}
+	catch (Exception ex)
+	{
+		System.Diagnostics.Debug.WriteLine(ex.Message);
+	}
+});
+```
+
 
 ### presentation
 

src/WeChatOcr/WeChatOcr.csproj

@@ -7,7 +7,7 @@
     <PropertyGroup Label="Nuget">
         <Version>1.0.0</Version>
         <Title>WeChatOcr</Title>
-        <Description>WeChatOcr</Description>
+        <Description>WeChatOcr, Study only, do not use for commercial purposes</Description>
         <PackageReadmeFile>README.md</PackageReadmeFile>
         <PackageTags>WeChatOcr</PackageTags>
     </PropertyGroup>