more examples on README

Author: atwayne

README.md

@@ -14,26 +14,65 @@
 
 ## Example
 ```csharp
-public async Task ShouldGetResponse {
-    // Arrange
-    var server = new TestServer();
-    var urlPattern = "\\?id=1";
-    var okResponse = "[1,2,3]";
-    server.CurrentRuleSet
-        .AddRule()
-        .WhenGet()
-        .WhenUrlMatch(urlPattern)
-        .SetOkResponse(okResponse);
-    var client = server.CreateClient();
-
-    // Act
-    var response = await client.GetAsync("/?id=1");
-    
-    // Assert
-    response.EnsureSuccessStatusCode();
-    var message = await response.Content.ReadAsStringAsync();
-    Assert.AreEqual(okResponse, message);
-}
+// Return OK response for every request
+server.CurrentRuleSet
+    .AddRule()
+    .SetOkResponse("ok");
+// Return Bad Request for every request
+server.CurrentRuleSet
+    .AddRule()
+    .SetBadRequest();
+
+// Return OK response for every HTTP GET request
+server.CurrentRuleSet
+    .AddRule()
+    .WhenGet()
+    .SetOkResponse("ok");
+
+// Return OK response for every HTTP Get request that matches an url patter
+var urlPattern = "\\?id=1";
+server.CurrentRuleSet
+    .AddRule()
+    .WhenUrlMatch(urlPattern)
+    .SetOkResponse("ok")
+
+// Return OK response for every HTTP request that has expected header
+server.CurrentRuleSet
+    .AddRule()
+    .WhenHeaderMatch("User-Agent", expectedUserAgent)
+    .SetOkResponse("ok");
+
+// You can chain your configuration, if the request matches mutiple rules, the first match will be picked
+var firstPattern = "\\?id=1";
+var secondPattern = "\\?id=*";
+
+server.CurrentRuleSet
+    .AddRule()
+    .WhenUrlMatch(firstPattern)
+    .SetOkResponse("ok-1")
+    .AddRule()
+    .WhenUrlMatch(secondPattern)
+    .SetOkResponse("ok-2");
+
+// Expire the rule after a certain count of match, once the rule has expired, it will never match a request
+server.CurrentRuleSet
+    .AddRule()
+    .SetMaxMatchCount(1)
+    .SetOkResponse(okResponse);
+
+// Return Ok response on the first request, and Ok response with a different content on the second request
+server.CurrentRuleSet
+    .AddRule()
+    .SetMaxMatchCount(1)
+    .SetOkResponse("ok-1");
+    .AddRule()
+    .SetOkResponse("ok-2");
+
+// Generate a HttpClient instance
+var httpClient = server.CreateClient();
+
+// Apply a HttpMessageHandler to the client
+var httpClient = server.CreateClient(new AddAuthorizationHandler());
 ```
 
 Check [the unit test cases](https://github.com/atwayne/TestServer/blob/master/test/TestServer.Tests/TestServerTests.cs) for more examples