Update _episodes/02-starting-with-data.md

Author: wrightaprilm

_episodes/02-starting-with-data.md

@@ -22,7 +22,7 @@ keypoints:
     - "Pandas is a popular library for working with data."
     - "A Dataframe is a Pandas data structure that allows one to access data by column (name or index) or row."
     - "Aggregating data using the `groupby()` function enables you to generate useful summaries of data quickly."
-    - "Plots can be created from DataFrames or from subsets of data that have been generated with `groupby()`."
+    - "Plots can be created from DataFrames or subsets of data that have been generated with `groupby()`."
 ---
 
 # Working With Pandas DataFrames in Python