chore: add readme

Signed-off-by: gfanton <[email protected]>

Makefile

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+test:
+	go test -v -race ./...

README.md

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+<h1 align="center">
+<br>
+  <img src="https://berty.tech/img/berty.svg" alt="Yolo - The Berty Project" height="300px">
+  <br>
+</h1>
+
+<h3 align="center">Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network</h3>
+
+<p align="center">
+    <a href="https://berty.tech"><img alt="Made by Berty Technologies" src="https://assets.berty.tech/files/badge--10.svg" /></a>
+    <a href="https://crpt.fyi/berty-discord"><img alt="discord" src="https://img.shields.io/badge/discord-gray?logo=discord" /></a>
+    <a href="https://github.com/berty"><img alt="github" src="https://img.shields.io/badge/@berty-471961?logo=github" /></a>
+    <a href="https://twitter.com/berty"><img alt="twitter" src="https://img.shields.io/twitter/follow/berty?label=%40berty&style=flat&logo=twitter" /></a>
+    <a href="https://pkg.go.dev/berty.tech/go-libp2p-mock?tab=subdirectories"><img alt="go.dev reference" src="https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white" /></a>
+    <a href="https://github.com/berty/go-libp2p-mock/releases"><img alt="GitHub release" src="https://img.shields.io/github/v/release/berty/go-libp2p-mock" /></a>
+</p>
+
+This repository hosts a fork of the `github.com/go-libp2p/p2p/net/mock` subpackage, formerly maintained by libp2p. It provides a mock network interface for testing purposes within the go-libp2p ecosystem.
+
+### Troubleshooting
+
+_(please use [issues](https://github.com/berty/go-libp2p-mock/issues)
+
+### Testing
+
+to test this package, use `make test`
+
+## Contributing
+
+[![Contribute to Berty](https://assets.berty.tech/files/contribute-contribute_v2--Contribute-berty-ultra-light.gif)](https://github.com/berty/community)
+
+If you want to help out, please see [CONTRIBUTING.md](./CONTRIBUTING.md).
+
+This repository falls under the Berty [Code of Conduct](https://github.com/berty/community/blob/master/CODE_OF_CONDUCT.md).
+
+You can contact us on the [`#dev-💻`](https://crpt.fyi/berty-dev-discord) channel on [discord](https://crpt.fyi/berty-discord).
+
+## License
+
+Dual-licensed under [Apache 2.0](https://www.apache.org/licenses/LICENSE-2.0) and [MIT](https://opensource.org/licenses/MIT) terms.
+
+`SPDX-License-Identifier: (Apache-2.0 OR MIT)`
+
+See the [COPYRIGHT](./COPYRIGHT) file for more details.