fix: Modify numeric type example

[lindseysimple]

Modify numeric type example values.

If your build fails due to your commit message not passing the build checks, please review the guidelines here: https://github.com/edgexfoundry/edgex-docs/blob/main/.github/Contributing.md

PR Checklist

Please check if your PR fulfills the following requirements:

• Changes have been rendered and validated locally using mkdocs-material (see edgex-docs README)