Fix Markdown test

The markdown api adds a trailing newline if there isn't already one. It
also converts \r\n to \n.

Octokit.Tests.Integration/Clients/MiscellaneousClientTests.cs

@@ -31,9 +31,9 @@ public class MiscellaneousClientTests
                 Credentials = Helper.Credentials
             };
             
-            var result = await github.Miscellaneous.RenderRawMarkdown("This is a **test**");
+            var result = await github.Miscellaneous.RenderRawMarkdown("This is\r\n a **test**");
                 
-            Assert.Equal("<p>This is a <strong>test</strong></p>", result);
+            Assert.Equal("<p>This is\n a <strong>test</strong></p>\n", result);
         }
     }
 }