Navigate to pull/number!

Author: jcansdale

src/GitHub.App/ViewModels/GitHubPane/PullRequestDetailViewModel.cs

@@ -329,7 +329,7 @@ public async Task InitializeAsync(
                 LocalRepository = localRepository;
                 RemoteRepositoryOwner = owner;
                 Number = number;
-                WebUrl = localRepository.CloneUrl.ToRepositoryUrl(owner);
+                WebUrl = localRepository.CloneUrl.ToRepositoryUrl(owner).Append("pull/" + number);
                 modelService = await modelServiceFactory.CreateAsync(connection);
 
                 await Refresh();