Update and rename README.rst to README.md

Author: nicoddemus

README.md

@@ -0,0 +1,21 @@
+# pytest-qt #
+
+pytest-qt is a [pytest](http://pytest.org) plugin that provides fixtures to help 
+programmers write tests for [PySide](https://pypi.python.org/pypi/PySide) and [PyQt](http://www.riverbankcomputing.com/software/pyqt)
+applications.
+
+The main usage is to use the qtbot fixture, which provides methods to simulate user interaction, like key presses and mouse clicks:
+
+```
+def test_hello(qtbot):
+    widget = HelloWidget()
+    qtbot.addWidget(widget)
+    
+    # click in the Greet button and make sure it updates the appropriate label
+    qtbot.mouseClick(window.button_greet, QtCore.Qt.LeftButton)
+    
+    assert window.greet_label.text() == 'Hello!'
+```
+
+Full documentation and tutorial available at `Read the Docs`_.
+