docs: add awesome-go badge

Author: tobbee

README.md

@@ -5,6 +5,7 @@
 ![golangci-lint](https://github.com/Eyevinn/mp4ff/workflows/golangci-lint/badge.svg?branch=master)
 [![GoDoc](https://godoc.org/github.com/Eyevinn/mp4ff?status.svg)](http://godoc.org/github.com/Eyevinn/mp4ff)
 [![Go Report Card](https://goreportcard.com/badge/github.com/Eyevinn/mp4ff)](https://goreportcard.com/report/github.com/Eyevinn/mp4ff)
+[![Mentioned in Awesome Go](https://awesome.re/mentioned-badge-flat.svg)](https://github.com/avelino/awesome-go#video)
 [![license](https://img.shields.io/github/license/Eyevinn/mp4ff.svg)](https://github.com/Eyevinn/mp4ff/blob/master/LICENSE)
 
 Module mp4ff implements MP4 media file parsing and writing for AVC and HEVC video, AAC and AC-3 audio, stpp and wvtt subtitles, and