DOC: update documentation

README.md

@@ -68,10 +68,11 @@ The methods that run empirical models can also be exported to any pysat instrume
 
 ```
 import pysat
-import pysatMissions.methods.empirical as mm_emp
+from pysatMissions.methods import empirical
 
 ivm = pysat.Instrument(platform='cnofs', name='ivm')
-ivm.custom.add(mm_emp.add_iri_thermal_plasma, 'modify', glat_label='glat',
+ivm.custom.add(empirical.add_iri_thermal_plasma, 'modify',
+               glat_label='glat',
                glong_label='glon', alt_label='altitude')
 ```
 Once the custom function is added, the model will automatically be run when the dataset is loaded.

docs/tutorial.rst

@@ -35,9 +35,9 @@ A number of methods are included to invoke several python wrappers for empirical
 .. code:: python
 
   import pysat
-  from pysatMissions.methods import empirical as mm_emp
+  from pysatMissions.methods import empirical
 
   ivm = pysat.Instrument(platform='cnofs', name='ivm')
-  ivm.custom.add(mm_emp.add_iri_thermal_plasma, 'modify', 'end', glat_label='glat', glong_label='glon', alt_label='altitude')
+  ivm.custom.add(empirical.add_iri_thermal_plasma, 'modify', 'end', glat_label='glat', glong_label='glon', alt_label='altitude')
 
 Note that in this case, the latitude, longitude, and altitude variable names of the instrument must be specified since they are not identical to the default names in the function.

pysatMissions/methods/magcoord.py

@@ -1,4 +1,4 @@
-"""Provides default routines for projecting aacgmv2 model values onto locations
+"""Provides default routines for projecting aacgmv2 and apexpy model values onto locations
 from pysat instruments.
 
 """