add readme and license

LICENSE

+The MIT License (MIT)
+
+Copyright (c) 2019 Protocol Labs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

+go-socket-activation
+==================
+
+[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](https://protocol.ai)
+[![](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](https://libp2p.io/)
+[![](https://img.shields.io/badge/freenode-%23libp2p-yellow.svg?style=flat-square)](https://webchat.freenode.net/?channels=%23libp2p)
+[![Coverage Status](https://img.shields.io/codecov/c/github/libp2p/go-socket-activation.svg?style=flat-square&branch=master)](https://codecov.io/github/libp2p/go-socket-activation?branch=master)
+[![Travis CI](https://travis-ci.org/libp2p/go-socket-activation.svg?branch=master)](https://travis-ci.org/libp2p/go-socket-activation)
+[![Discourse posts](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg)](https://discuss.libp2p.io)
+
+
+> A library for creating socket-activated processes.
+
+This library provides access to sockets registered by the system's init daemon.
+See: http://0pointer.de/blog/projects/socket-activation.html for details.
+
+At the moment, this library only supports systemd.
+
+## Table of Contents
+
+- [Install](#install)
+- [Contribute](#contribute)
+- [License](#license)
+
+## Install
+
+```sh
+go get -u github.com/libp2p/go-socket-activation
+```
+
+## Usage
+
+
+## Contribute
+
+PRs are welcome!
+
+Small note: If editing the Readme, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
+
+## License
+
+MIT © 2019 Protocol Labs