Documentation updates.

Author: lendres

README.md

@@ -1,9 +1,9 @@
 # ButtonSuite
 
-A class for adding functionality to push (momentary) buttons.  Includes debouncing.  This library contains two categories of button types.  The first category is two state buttons; these are either on or off.  The second category provides incrementing buttons that can perform different types of counting.
+A class for adding functionality to push (momentary) buttons.  This library allows a simple momentary push button to be used as a momentary button, latching button, counter, or enumerator.  This library uses the Bounce2 library to add debouncing functionality.
 
 ## Types of Buttons
-The two categories of buttons that can be instantiated are described here.  See "Software Design" below for information about how the source code implements these behaviors.
+This library contains two categories of button types.  The first category is two state buttons; these are either on or off.  The second category provides incrementing buttons that can perform different types of counting.  These two categories of buttons are described here.  See "Software Design" below for information about how the source code implements these behaviors.
 
 ### Two State Buttons
 These buttons are either on or off.
@@ -33,7 +33,7 @@ Turns a push button (momentary button) into a button used to cycle through state
 Some abstract base classes provided common functionality and interface design.  These cannot be instantiated.
 
 #### ButtonBase
-Abstract class that is the base class for every other class and implements common behavior.
+Abstract class that is the base class for every other class and implements common behavior.  If you want to understand the software, you should start here.
 
 #### SimpleButton
 Abstract base class that provides interface for a two state button (button that only has an on and off state).  You cannot instantiate (create an instance) of this class.

src/ButtonBase.h

@@ -27,12 +27,20 @@
 	behavior into currently pressed, short press, long press, or idle (nothing
 	happening).
 	
-	This class also acts as a base class for other button related classes.
+	This class is a base class for all other button classes.
 
 	The work of debouncing and catching the state changes (LOW to HIGH or HIGH to LOW)
 	is done by the Bounce2 library.
 
-	See also: PushButton, ToggleButton, PushButtonCounter, CycleButton
+	See also: SimpleButton, ResetableButton
+*/
+
+/*
+  You must have the following libraries to run this software.
+
+  Bounce2 by Thomas Ouellet Fredericks, et al.
+    - Can be installed from Arduino IDE Library Manager.
+    - https://github.com/thomasfredericks/Bounce2
 */
 
 /*

src/SimpleButton.h

@@ -25,10 +25,11 @@
 	Abstract class that provides interface for a two state button (button that only has
 	an on and off state).
 
-	The purpose of this class is to provide automatic implimentation of different behaviors.
-	By using different classes derived from SimpleButton, a class can automatically implement
-	momentary, latching, always on, or always off behavior.  This makes it easy to implement
-	different behaviors or even	switch behaviors during run time.
+	The purpose of this class is to allow software to switch behaviors during run time.  This
+	also makes software development easier by not locking the developer into a specific button
+	type.  By using different classes derived from SimpleButton, software can implement
+	momentary, latching, always on, or always off behavior simply by instantiating the required
+	derived class.
 */
 
 #ifndef TWOSTATEBUTTON_H
@@ -39,10 +40,14 @@
 
 class SimpleButton : public ButtonBase
 {
-	public:
+	protected:
+		// This is an abstract class and is only instantiated by derived classes.
+		// Therefore, all the constructors should be protected.
 		SimpleButton(int pin);
 		SimpleButton(int pin, int debounceInterval);
-		~SimpleButton();
+
+	public:
+		virtual ~SimpleButton();
 
 	public:
 		// Returns true if the button is currently pressed.