Update ReadMe.md

planning/ReadMe.md

 # Event Planning
 
-## Example Spreadsheet
+## Example Spreadsheets
+
 Each event and promotional activity must have a spreadsheet of projected costs where each line item is explicitly quantified. 
 
+### Single Physical Event
+
 https://docs.google.com/spreadsheets/d/1PCxWJzFF-e-7NX2MJWGZ4gH2LpWg42GSfXlWrHZMs3E/edit?usp=sharing 
+
+## Example Presentation Slides
+
+Hive presentation slides are to the point, easy to understand, and always professional.
+
+https://docs.google.com/presentation/d/1c04Q7h_WsLo464BUKa49LmXDvWEk9LY9cw0ExzT53P4/edit?usp=sharing