New comment by kruceter on void-packages repository

https://github.com/void-linux/void-packages/pull/42072#issuecomment-1416695020

Comment:
`CONTRIBUTING.md`:

```markdown
* for package updates, use `<pkgname>: update to <version>.` ([example](https://github.com/void-linux/void-packages/commit/c92203f1d6f33026ae89f3e4c1012fb6450bbac1)).
```