New help window.

WifiSitterGui/View/HelpWindow.xaml

@@ -0,0 +1,12 @@
+<Window x:Class="WifiSitterGui.View.HelpWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WifiSitterGui.View"
+        mc:Ignorable="d"
+        Title="HelpWindow" Height="300" Width="300">
+    <Grid x:Name="Grid_Main">
+        
+    </Grid>
+</Window>

WifiSitterGui/View/HelpWindow.xaml.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+using WifiSitterGui.Helpers;
+
+namespace WifiSitterGui.View
+{
+    /// <summary>
+    /// Interaction logic for HelpWindow.xaml
+    /// </summary>
+    public partial class HelpWindow : Window
+    {
+        public HelpWindow() {
+            InitializeComponent();
+        }
+
+        public HelpWindow(Uri RtfContent) {
+            InitializeComponent();
+            
+            var rtb = new RichTextBox();
+            rtb.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;
+            rtb.Margin = new Thickness(10);
+            rtb.SetRtf(RtfContent);
+            rtb.ScrollToHome();
+        }
+    }
+}