feat: ✨ add examples section to docstring template (#39)

## Description

Since we generally want to add examples to our Python functions (but
maybe not all functions?), I have added it to the docstring template.

Thoughts? Feel free to disagree.

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Author: signekb

.vscode/google-notypes.mustache

@@ -34,3 +34,8 @@ Yields:
     {{descriptionPlaceholder}}.
 {{/yields}}
 {{/yieldsExist}}
+
+Examples:
+    ```{python}
+    {{descriptionPlaceholder}}
+    ```