Add recipe for plotting radar on terrain background (#8)

* Add files via upload

For plotting radar reflectivity from AUS2200 data on a black and white terrain background. My first test upload.

* Update AUS2200_radar_terrain.ipynb add level 1 title

* Update AUS2200_radar_terrain.ipynb adding description

* Update AUS2200_radar_terrain.ipynb

Just trying to correct the description formatting below the title.

* Update AUS2200_radar_terrain.ipynb removing some imports

Author: youstormorg