Bring the "Press Enter" UI closer to the authentication experience

- "Press Enter" is both bold
- "Enter" is capitalized
- The prompt ends with "..."

pkg/cmd/pr/shared/commentable.go

@@ -145,7 +145,7 @@ func CommentableInteractiveEditSurvey(cf func() (config.Config, error), io *iost
 			editorCommand = surveyext.DefaultEditorName()
 		}
 		cs := io.ColorScheme()
-		fmt.Fprintf(io.Out, "Press %s to draft your comment in %s.", cs.Bold("enter"), cs.Bold(editorCommand))
+		fmt.Fprintf(io.Out, "- %s to draft your comment in %s... ", cs.Bold("Press Enter"), cs.Bold(editorCommand))
 		_ = waitForEnter(io.In)
 		return surveyext.Edit(editorCommand, "*.md", "", io.In, io.Out, io.ErrOut, nil)
 	}