Add to examples something like mythx-curl-api's tool-stats.sh

There should be a program like https://github.com/rocky/mythx-api-curl/blob/master/tool-stats.sh in examples that shows how to retrieve tool statistics.

Start by reading the referenced mythx-api-curl/tool-stats.sh and inspect the repository's examples directory to find the appropriate location and conventions. Reproduce the example for retrieving tool statistics, then verify that it runs and clearly demonstrates the API request and returned statistics.

Written by the indexing model from the issue text.