made Lorem partial class - updated readme

Lorem.NET/Lorem.cs

@@ -4,7 +4,7 @@ using System.Linq;
 
 namespace LoremNET
 {
-    public class Lorem
+    public partial class Lorem
     {
         public static bool Chance(int successes, int attempts)
         {

readme.html

@@ -51,5 +51,22 @@ string number = LoremNET.Lorem.Random(numbers);
 <p>Lorem.NET includes a thread-safe System.Random instance.</p>
 
 <p><code>csharp
-int i = LoremNET.RandomHelper.Instance.Next(1, 2)
+int i = LoremNET.RandomHelper.Instance.Next(1, 2);
+</code></p>
+
+<h3>Extending the Class</h3>
+
+<p>If you want to extend the class to add more methods, go right ahead!</p>
+
+<p><code>csharp
+namespace LoremNET
+{
+    public partial class Lorem
+    {
+        public static string Email(string domain)
+        {
+            return Email().Replace(".com", string.Format(".{0}", domain));
+        }
+    }
+}
 </code></p>

readme.md

@@ -53,5 +53,22 @@ string number = LoremNET.Lorem.Random(numbers);
 Lorem.NET includes a thread-safe System.Random instance.
 
 ```csharp
-int i = LoremNET.RandomHelper.Instance.Next(1, 2)
+int i = LoremNET.RandomHelper.Instance.Next(1, 2);
+```
+
+### Extending the Class
+
+If you want to extend the class to add more methods, go right ahead!
+
+```csharp
+namespace LoremNET
+{
+    public partial class Lorem
+    {
+        public static string Email(string domain)
+        {
+            return Email().Replace(".com", string.Format(".{0}", domain));
+        }
+    }
+}
 ```