Change Details

[] Calculate metrics [] Commit notebook output to Git and push to GitHub [] Prepare notes and analysis [] Add metrics, notes, and analysis to the [board staging deck](https://docs.google.com/presentation/d/1D_MuQ4Cf23Agn1o_ausJtH5rrJysqtGIYzmK8xxEX7M/edit#slide=id.g4463d16142_0_0)

[X] Calculate metrics [X] Commit notebook output to Git and push to GitHub. https://github.com/wikimedia-research/Readers-core-metrics [X] Prepare notes and analysis [X] Add metrics, notes, and analysis to the [board staging deck](https://docs.google.com/presentation/d/1D_MuQ4Cf23Agn1o_ausJtH5rrJysqtGIYzmK8xxEX7M/edit#slide=id.g4463d16142_0_0)

[X] Calculate metrics [X] Commit notebook output to Git and push to GitHub. https://github.com/wikimedia-research/Readers-core-metrics [X] Prepare notes and analysis [X] Add metrics, notes, and analysis to the [board staging deck](https://docs.google.com/presentation/d/1D_MuQ4Cf23Agn1o_ausJtH5rrJysqtGIYzmK8xxEX7M/edit#slide=id.g4463d16142_0_0)