Added EIA to Energy Datasources.

The EIA 923 details monthly electricity generation for utility scale
generation units within North America, including information on fuel
consumption and cost, generation energy usage, and environmental data.
Adding Weather Datasources to Climate Section

Cleaning up capitalization in the climate section, and adding:

1) NOAA Real-time Models: These are the models that power forecast
   systems all over the world. The models consist of both North America
   specific simulations (NAM, RUC) as well as global models (GFS).
2) Canadian Meteorological Centre: These models offer a nice compliment
   to the NOAA real-time models, both in North America and throughout the
   world.