Update README.md

Author: TheGreatCabbage

README.md

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+# qasync
+
+![Maintenance](https://img.shields.io/maintenance/yes/2019)
+![PyPI - Python Version](https://img.shields.io/pypi/pyversions/qasync)
+![PyPI - License](https://img.shields.io/pypi/l/qasync)
+![PyPI](https://img.shields.io/pypi/v/qasync)
+
+## Introduction
+
+`qasync` allows you to use coroutines in PyQt/PySide applications by providing an implementation of the `PEP 3156` event-loop. 
+
+`qasync` is a fork of [asyncqt](https://github.com/gmarull/asyncqt), which is a fork of [quamash](https://github.com/harvimt/quamash). May it live longer than its predecessors. 
+
+## Requirements
+
+`qasync` requires Python 3.6 or greater, and PyQt5 or PySide2.
+
+## Installation
+
+To install `qasync`, use `pip`:
+
+```
+pip install qasync --user
+```
+
+## License
+
+You may use, modify and redistribute this software under the terms of the [BSD License](http://opensource.org/licenses/BSD-2-Clause). See [LICENSE](/LICENSE).