Added Comments

src/main/java/frc/robot/subsystems/shooter/ShooterIOSparkMax.java

@@ -6,26 +6,34 @@
 import edu.wpi.first.math.util.Units;
 
 public class ShooterIOSparkMax implements ShooterIO {
+  // Gear ratio for the shooter mechanism
   private static final double GEAR_RATIO = 5.0;
 
+  //define the 2 SparkMax Controllers. A leader, and a follower
   private final CANSparkMax leader = new CANSparkMax(0, MotorType.kBrushless);
   private final CANSparkMax follower = new CANSparkMax(1, MotorType.kBrushless);
+
+  //Gets the NEO encoder
   private final RelativeEncoder encoder = leader.getEncoder();
 
   public ShooterIOSparkMax() {
+     // leader motor is not inverted, and set follower motor to follow the leader
     leader.setInverted(false);
     follower.follow(leader, false);
   }
 
   @Override
   public void updateInputs(ShooterIOInputs inputs) {
+    // Set velocityRadPerSec to the encoder velocity(rotationsPerMinute) divided by the gear ratio and converted into Radians Per Second
     inputs.velocityRadPerSec =
         Units.rotationsPerMinuteToRadiansPerSecond(encoder.getVelocity() / GEAR_RATIO);
+    // Get applied voltage from the leader motor
     inputs.appliedVolts = leader.getAppliedOutput() * leader.getBusVoltage();
   }
 
   @Override
   public void setVoltage(double volts) {
+    // Set the voltage output for the leader motor
     leader.setVoltage(volts);
   }
 }