Add pandas example based on XDev workshop

_toc.yml

@@ -41,5 +41,7 @@
         - file: core/cartopy/01_Cartopy_Intro
     - file: core/datetime
     - file: core/pandas
+      sections:
+        - file: core/pandas/pandas_fullNotebook
     - file: core/data-formats
     - file: core/xarray

core/pandas.md

@@ -4,4 +4,12 @@
 This content is under construction!
 ```
 
-This section will contain tutorials on using [pandas](https://pandas.pydata.org) for labeled tabular data.
+## This section will contain tutorials on using [pandas](https://pandas.pydata.org) for labeled tabular data.
+
+---
+
+From the [Pandas documentation](https://pandas.pydata.org/) "is a fast, powerful, flexible and easy to use open source data analysis and manipulation tool, built on top of the Python programming language."
+
+Pandas is a very powerful library for working with tabular data (i.e. anything you might put in a spreadsheet -- a common data type in the geosciences). It allows us to use labels for our data so that we can write expressive and robust code to manipulate the data.
+
+Key features of Pandas are the ability to read in tabular data, slice and dice data, and exploratory analysis tools native to the library.