README has outdated output log example

[jhoshiko]

In the README file, the example output log is outdated. We should update this log with a fresh Denver demo run.

[nreinicke]

yeah good call; I wonder if this could even become automated by moving this log over to the documentation and then running the denver demo whenever we build the docs.

[clintonsteiner]

Opened a PR here, #160 I'm at pycon and will be around tomorrow
First PR, hope I did this correctly

[clintonsteiner]

Readme updated, automating this still needs to be done with github actions