fix pip install cmd in readme [ci skip]

README.md

@@ -1,6 +1,19 @@
 # asyncio-seppuku
-sends signal to current pid after specified delay
+[![Build Status](https://travis-ci.org/jar3b/asyncio-seppuku.svg?branch=master)](https://travis-ci.org/jar3b/asyncio-seppuku)
+[![PyPI version](https://badge.fury.io/py/asyncio-seppuku.svg)](https://badge.fury.io/py/asyncio-seppuku)
 
-## Usage:
-See examples/simple.py
+
+Sends signal to current pid after specified delay.
+
+Works on Linux (because OS async singals support is required), supports Python 3.3+ (for Python 3.3 need to install asyncio)
+
+## For what?
+idk
+
+## Installation
+
+via pip: `pip install asyncio-seppuku`
+
+## Usage
+See [examples/simple.py](examples/simple.py)