Update README.md

Author: gbear605

README.md

@@ -7,10 +7,12 @@ There are two versions, SmartChart and SmartChartDouble. The only difference bet
 - Graphs based on time, instead of based on when a new data point is sent to the dashboard
 - Graph can be reset
 - Graph can export data to a csv file in the location USER\_HOME\_DIRECTORY/SmartDashboard/VARIABLE\_NAME.csv
-
-##SmartChartDouble
-- All the advantages of SmartChart
 - Graph can show multiple data sets simultaneously, by sending SmartDashboard a string with the format "[num1]:[num2]:[num3]:...". Eg. "1.0:2.3:5.6"
+- If not showing multiple data sets simultaneously, can zoom in on graph by clicking and dragging on the graph.
+
+##Planned features:
+- Zooming while showing multiple data sets
+- Scrolling
 
 ##Installation
 Download the most recent release, and move the .jar to your USER_HOME_DIRECTORY/wpilib/tools/plugins/ folder.