[llandy3d]

I've probably cut the wrong word to make the title more concise, it's a prometheus client library. (https://prometheus.io/docs/instrumenting/clientlibs/)

This is the library to use in your python code to expose metrics so that Prometheus can scrape them. The diagram would definitely be useful, it started as something that "you already knew if you need it" but I noticed that there is more interest from people with no experience with these system, I was considering adding more information or making small guides/tutorial to ease into the why you need the monitoring, even for small applications since the price is small. Thanks!