update README

Signed-off-by: Valery Piashchynski <[email protected]>

README.md

@@ -1,3 +1,12 @@
+<p align="center">
+ <a href="https://pkg.go.dev/github.com/spiral/tcplisten?tab=doc"><img src="https://godoc.org/github.com/spiral/tcplisten?status.svg"></a>
+	<a href="https://github.com/spiral/tcplisten/actions"><img src="https://github.com/spiral/tcplisten/workflows/tests/badge.svg" alt=""></a>
+	<a href="https://goreportcard.com/report/github.com/spiral/tcplisten"><img src="https://goreportcard.com/badge/github.com/spiral/tcplisten"></a>
+	<a href="https://codecov.io/gh/spiral/tcplisten/"><img src="https://codecov.io/gh/spiral/tcplisten/branch/master/graph/badge.svg"></a>
+	<a href="https://lgtm.com/projects/g/spiral/tcplisten/alerts/"><img alt="Total alerts" src="https://img.shields.io/lgtm/alerts/g/spiral/tcplisten.svg?logo=lgtm&logoWidth=18"/></a>
+	<a href="https://discord.gg/TFeEmCs"><img src="https://img.shields.io/badge/discord-chat-magenta.svg"></a>
+</p>
+
 Package tcplisten provides customizable TCP net.Listener with various
 performance-related options: