Fix setup.py syntax.

setup.py

@@ -3,12 +3,12 @@ from distutils.core import setup
 setup(
     name='geomag-algorithms',
     version='0.0.0',
-    desription='USGS Geomag IO Library',
+    description='USGS Geomag IO Library',
     url='https://github.com/usgs/geomag-algorithms',
     packages=[
         'geomagio',
         'geomagio.iaga2002',
-        'geomagio.imvf283',
+        'geomagio.imfv283',
         'geomagio.edge',
         'geomagio.pcdcp'
     ],