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Feature description

This is a follow-up to PR #1151, which introduced a new statistics object in the context for templates. To make this feature more accessible to users, we propose to:

• Add a new example file: examples/statistics.toml
• Add a section in website/docs/tips-and-tricks.md

Desired solution

• Create a concise example configuration file examples/statistics.toml showcasing how to use the new statistics object in changelog templates.
• Update website/docs/tips-and-tricks.md with a short description so that users can discover it easily.

Alternatives considered

N/A

Additional context

N/A