Add comment to RegisterTextBoxSelectAll.

zaaReloaded2/ThisAddIn.cs

@@ -162,6 +162,12 @@ namespace zaaReloaded2
         
         #endregion
 
+        /// <summary>
+        /// Make text boxes select all text on focus.
+        /// </summary>
+        /// <remarks>
+        /// http://stackoverflow.com/a/2553297/270712
+        /// </remarks>
         void RegisterTextBoxSelectAll()
         {
             // Select the text in a TextBox when it receives focus.