Website for the GP Summer Schools.
Each event has its on repository. If you are a collaborator on an event you can either fork the repo and submit pull requests, or you can ask to be added to a team associated with the event.
In general, for each repo the web pages are under the gh-pages branch. You can find the lecture list under
_data/lectures.csv
And there is some config information in
_config.yml
Which can be edited for page titles, organiser urls etc. The pages are written in Jekyll.