Find # of participants for chainladder

[genedan]

I wonder if we can query the repo to find the total number of:

• Code contributors
• Issue creators
• Discussion creators
• Issue/discussion participants

This is to complete the sentence in the ecosystem section in Chapter 3:

Over the course of 6 years, X (insert number here - delete if we can't find) users have opened and closed 224 issues pertaining to bugs, usage
questions, and new features.

[kennethshsu]

I can take this one, we can use the statistics from Google Analytics.