Include API file which shows overview of all tracked sites

[LukePrior]

I am tracking ~100 sites and I like the ability to create Shields.io badges for them but it would be really useful to have an average or overall file which shows the average uptime and response time across all the monitored sites.

[LukePrior]

I see that summary.json exists but this doesn't contain an entry for the overall average so I can't create a Badges.io shield from it.

[MatadorProBr]

You can use the api directory to make a shield in Shields.io, for more information: https://upptime.js.org/docs/badges