Update README.md

Added awesome-go badge

README.md

@@ -4,6 +4,7 @@
 [![codecov](https://codecov.io/gh/wneessen/go-mail/branch/main/graph/badge.svg?token=37KWJV03MR)](https://codecov.io/gh/wneessen/go-mail) 
 [![Go Report Card](https://goreportcard.com/badge/github.com/wneessen/go-mail)](https://goreportcard.com/report/github.com/wneessen/go-mail) 
 [![Build Status](https://api.cirrus-ci.com/github/wneessen/go-mail.svg)](https://cirrus-ci.com/github/wneessen/go-mail) 
+[![Mentioned in Awesome Go](https://awesome.re/mentioned-badge-flat.svg)](https://github.com/avelino/awesome-go) 
 <a href="https://ko-fi.com/D1D24V9IX"><img src="https://uploads-ssl.webflow.com/5c14e387dab576fe667689cf/5cbed8a4ae2b88347c06c923_BuyMeACoffee_blue.png" height="20" alt="buy ma a coffee"></a>
 
 The main idea of this library was to provide a simple interface to sending mails for
@@ -120,4 +121,4 @@ func main() {
 
 	fmt.Println("Mail successfully sent.")
 }
-```
+```