adding readme

Author: mvexel

README.md

@@ -0,0 +1,22 @@
+# Overpass API python wrapper
+
+This is a thin wrapper around the OpenStreetMap [Overpass API](http://wiki.openstreetmap.org/wiki/Overpass_API).
+
+## Use it
+
+```
+>>> import Overpass
+>>> api = Overpass.API()
+>>> response = api.Get('[out:json];node["name":"Salt Lake City"];out body;')
+```
+
+You will get your result as a dictionary, which (for now) represents the JSON output you would get [from the Overpass API directly](http://overpass-api.de/output_formats.html#json). So you could do this for example:
+
+```
+>>> print [(feature['tags']['name'], feature['id']) for feature in response['elements']]
+[(u'Salt Lake City', 150935219), (u'Salt Lake City', 585370637), (u'Salt Lake City', 1615721573)]
+```
+
+## Fork it
+
+[Yes please](https://github.com/mvexel/overpass-api-python-wrapper/fork).