Docstrings

examples/open_link.py

@@ -4,12 +4,15 @@ from textual.widgets import Button
 
 
 class OpenLink(App[None]):
+    """Demonstrates opening a URL in the same tab or a new tab."""
+
     def compose(self) -> ComposeResult:
         yield Button("Visit the Textual docs", id="open-link-same-tab")
         yield Button("Visit the Textual docs in a new tab", id="open-link-new-tab")
 
     @on(Button.Pressed)
     def open_link(self, event: Button.Pressed) -> None:
+        """Open the URL in the same tab or a new tab depending on which button was pressed."""
         self.open_url(
             "https://textual.textualize.io",
             new_tab=event.button.id == "open-link-new-tab",