Update README.md (#4)

Author: jfabellera

README.md

@@ -4,6 +4,8 @@ A template project for an FRC swerve drivetrain that uses REV MAXSwerve Modules.
 
 Note that this is meant to be used with a drivetrain composed of four MAXSwerve Modules, each configured with two SPARKS MAX, a NEO as the driving motor, a NEO 550 as the turning motor, and a REV Through Bore Encoder as the absolute turning encoder.
 
+To get started, make sure you have calibrated the zero offsets for the absolute encoders in the Hardware Client using the `Absolute Encoder` tab under the associated SPARK MAX device.
+
 ## Prerequisites
 
 * SPARK MAX Firmware v1.6.1 - Adds features that are required for swerve
@@ -13,4 +15,4 @@ Note that this is meant to be used with a drivetrain composed of four MAXSwerve
 
 It is possible that this project will not work for your robot right out of the box. Various things like the CAN IDs, PIDF gains, chassis configuration, etc. must be determined for your own robot!
 
-These values can be adjusted in the `Constants.java` file.
+These values can be adjusted in the `Constants.java` file.