Added codecov badge

README.md

@@ -1,15 +1,13 @@
 # MTProto
 
-![help wanted](https://img.shields.io/badge/-help%20wanted-success)
 [![godoc reference](https://pkg.go.dev/badge/github.com/xelaj/mtproto?status.svg)](https://pkg.go.dev/github.com/xelaj/mtproto)
 [![Go Report Card](https://goreportcard.com/badge/github.com/xelaj/mtproto)](https://goreportcard.com/report/github.com/xelaj/mtproto)
+[![codecov](https://codecov.io/gh/xelaj/mtproto/branch/master/graph/badge.svg)](https://codecov.io/gh/xelaj/mtproto)
 [![license MIT](https://img.shields.io/badge/license-MIT-green)](https://github.com/xelaj/mtproto/blob/master/README.md)
 [![chat telegram](https://img.shields.io/badge/chat-telegram-0088cc)](https://bit.ly/2xlsVsQ)
-![version v0.1.0](https://img.shields.io/badge/version-v0.1.0-red)
+![version v0.5.0](https://img.shields.io/badge/version-v0.5.0-yellow)
 ![unstable](https://img.shields.io/badge/stability-unstable-yellow)
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