docs: update PkgGoDev badge
# VK SDK for Golang
[![Build Status](https://travis-ci.com/SevereCloud/vksdk.svg?branch=master)](https://travis-ci.com/SevereCloud/vksdk)
-[![Documentation](https://godoc.org/github.com/SevereCloud/vksdk?status.svg)](https://pkg.go.dev/github.com/SevereCloud/vksdk?tab=subdirectories)
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/SevereCloud/vksdk)](https://pkg.go.dev/github.com/SevereCloud/vksdk?tab=subdirectories)
[![VK Developers](https://img.shields.io/badge/developers-%234a76a8.svg?logo=VK&logoColor=white)](https://vk.com/dev/)
[![codecov](https://codecov.io/gh/SevereCloud/vksdk/branch/master/graph/badge.svg)](https://codecov.io/gh/SevereCloud/vksdk)
[![VK chat](https://img.shields.io/badge/VK%20chat-%234a76a8.svg?logo=VK&logoColor=white)](https://vk.me/join/AJQ1d6Or8Q00Y_CSOESfbqGt)
