Update README.md

Author: MajMcCloud

README.md

@@ -1,6 +1,6 @@
 # .NET Telegram Bot Framework - Context based addon
 
-[![NuGet version (TelegramBotBase)](https://img.shields.io/nuget/vpre/TelegramBotBase.svg?style=flat-square)](https://www.nuget.org/packages/TelegramBotBase/)
+[![NuGet version (TelegramBotBase)](https://img.shields.io/nuget/v/TelegramBotBase.svg?style=flat-square)](https://www.nuget.org/packages/TelegramBotBase/)
 [![Telegram chat](https://img.shields.io/badge/Support_Chat-Telegram-blue.svg?style=flat-square)](https://www.t.me/tgbotbase)
 
 [![License](https://img.shields.io/github/license/MajMcCloud/telegrambotframework.svg?style=flat-square&maxAge=2592000&label=License)](https://raw.githubusercontent.com/MajMcCloud/TelegramBotFramework/master/LICENCE.md)