Append template if it exists.

If the was a single commit in the PR and also a PR template in the repository then append the template to the commit message for the initial commit description.

Author: grokys

src/GitHub.App/ViewModels/PullRequestCreationViewModel.cs

@@ -166,7 +166,9 @@ public PullRequestCreationViewModel(IRepositoryHost repositoryHost, ILocalReposi
 
                     if (!string.IsNullOrWhiteSpace(x.template))
                     {
-                        prDescription = x.template;
+                        if (!string.IsNullOrEmpty(prDescription))
+                            prDescription += "\n\n";
+                        prDescription += x.template;
                     }
 
                     PRTitle = prTitle;