Fix incorrect AddressableLED test end check and clarify Range record purpose

Author: RobotLeopard86

src/main/java/frc/robot/commands/test/AddressableLEDTestCommand.java

@@ -48,7 +48,7 @@ public void execute() {
 
   @Override
   public boolean isFinished() {
-    return testCount < (AddressableLEDConstants.SECTIONS.length + 1);
+    return testCount >= (AddressableLEDConstants.SECTIONS.length + 1);
   }
 
   @Override

src/main/java/frc/robot/subsystems/addressableled/AddressableLEDConstants.java

@@ -6,8 +6,9 @@
 
 public class AddressableLEDConstants {
   /**
-   * @param low The lower bound of the range
-   * @param high The upper bound of the range
+   * This record is used to represent a range of LEDs that are grouped together and exhibit one pattern
+   * @param low The lowest index LED in the range
+   * @param high The highest index LED in the range
    */
   public record Range(int low, int high) {}