Add comment to MainWindow with tutorial link

SpritePacker-GUI/MainWindow.cs

@@ -12,6 +12,10 @@ using System.Text;
 
 namespace SpritePacker.GUI
 {
+	/// <summary>
+	/// The main SpritePacker GUI window.
+	/// Uses Gtk#. This tutorial is really helpful: http://zetcode.com/gui/gtksharp/
+	/// </summary>
 	public class MainWindow : Window
 	{
 		private static bool initialised = false;

SpritePacker/SBRLUtilities/ResizeImage.cs

@@ -9,6 +9,15 @@ namespace SpritePacker.SBRLUtilities
 		/// <summary>
 		/// Resizes a <c>Bitmap</c> such that it fits within the target dimensions.
 		/// </summary>
+		/// <description>
+		/// v0.1, by Starbeamrainbowlabs
+		/// Last updated on 2nd August 2016
+		/// Licensed under MPL v2.0.
+		/// 
+		/// Changelog:
+		/// v0.1 (2nd August 2016):
+		/// 	- Initial Release.
+		/// </description>
 		/// <param name="sourceImage">The image to resize.</param>
 		/// <param name="targetBox">The target dimensions.</param>
 		/// <returns>The resized image.</returns>