Added README

src/Telegartor.RedisStateStorage/README.md

@@ -0,0 +1,57 @@
+# Telegrator.RedisStateStorage
+
+**Telegrator.RedisStateStorage** is an extension for the Telegrator framework that provides Redis powered IStateStorage implementation.
+
+---
+
+## Requirements
+- .NET standart 2.1 or later
+- [Telegrator](https://github.com/Rikitav/Telegrator)
+
+---
+
+## Installation
+
+```shell
+dotnet add package Telegrator.RedisStateStorage
+```
+
+---
+
+## Quick Start Example
+
+**Program.cs:**
+```csharp
+using Telegrator.Hosting;
+
+// Creating builder
+TelegramBotHostBuilder builder = TelegramBotHost.CreateBuilder(new HostApplicationBuilderSettings()
+{
+    Args = args,
+    ApplicationName = "TelegramBotHost example",
+});
+
+// Registerring handlers
+builder.Handlers.CollectHandlersAssemblyWide();
+
+// Register your services and 
+builder.Services.AddService<IStateStorage, RedisStateStorage>(services =>
+    new RedisStateStorage(ConnectionMultiplexer.Connect("server1:6379, server2:6379")));
+
+// Building and running application
+TelegramBotHost telegramBot = builder.Build();
+telegramBot.SetBotCommands();
+telegramBot.Run();
+```
+
+---
+
+## Documentation
+- [Telegrator Main Docs](https://github.com/Rikitav/Telegrator)
+- [Getting Started Guide](https://github.com/Rikitav/Telegrator/wiki/Getting-started)
+- [Annotation Overview](https://github.com/Rikitav/Telegrator/wiki/Annotation-overview)
+
+---
+
+## License
+GPLv3 

src/Telegartor.RedisStateStorage/States/RedisStateStorage.cs

@@ -16,7 +16,7 @@ public class RedisStateStorage(IConnectionMultiplexer redis) : IStateStorage
     }
 
     /// <inheritdoc/>
-    public async Task<T?> GetAsync<T>(string key, CancellationToken cancellationToken) where T : default
+    public async Task<T?> GetAsync<T>(string key, CancellationToken cancellationToken)
     {
         RedisValue json = await _db.StringGetAsync(key);
         string? jsonStr = json;