Add Metrics for Employee Satisfaction and Retention

[Trueblueaddie]

InnerSourcePatterns/patterns/1-initial/introducing-metrics-in-innersource.md

Line 65 in abd1635

| Employee satisfaction & talent retention | |

| Employee satisfaction & talent retention | eNPS score
attrition rate |

[spier]

Thanks for adding this suggestion @Trueblueaddie. Much appreciated.

Are you comfortable with making this change directly via a Pull Request?
e.g. by editing the file as desired, and then committing your change and opening a new pull request with that change.

Then we can point the authors to your PR and they can review it.

[spier]

Implemented in #455. Thank you!