Improve README

Author: virzak

README.md

@@ -1,12 +1,16 @@
 # Sync Method Generator
 
+![Type less, sync more, star!](https://img.shields.io/badge/Type_less-Sync_more-purple)
 [![Build](https://github.com/zompinc/sync-method-generator/actions/workflows/build.yml/badge.svg)](https://github.com/zompinc/sync-method-generator/actions/workflows/build.yml)
 ![Support .NET Standard 2.0](https://img.shields.io/badge/dotnet%20version-.NET%20Standard%202.0-blue)
 [![Nuget](https://img.shields.io/nuget/v/Zomp.SyncMethodGenerator)](https://www.nuget.org/packages/Zomp.SyncMethodGenerator)
 [![codecov](https://codecov.io/gh/zompinc/sync-method-generator/branch/master/graph/badge.svg)](https://codecov.io/gh/zompinc/sync-method-generator)
+[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/zompinc/sync-method-generator)
 
 This [.NET source generator](https://learn.microsoft.com/en-us/dotnet/csharp/roslyn-sdk/source-generators-overview) produces a sync method from an async one.
 
+If you hate code duplication or calling async methods from sync please [⭐ star this project](https://github.com/zompinc/sync-method-generator/stargazers)
+
 ## Use cases
 
 - A library which exposes both sync and async version of a method
@@ -131,6 +135,11 @@ If you only want to execute in the original async version, flip the flag like th
 
 Note: `SYNC_ONLY` cannot be mixed with other symbols in a conditional expression and cannot have `#elif` directive.
 
+> [!WARNING]  
+> `SYNC_ONLY` flag currently works in parameter lists, argument lists and statements.  
+> Please always double check your code when using this flag.  
+> If your use case is not supported, please log an issue.
+
 ## Installation
 
 To add the library use: