[gsi-timing-starter-kit] wiki issues

• Link https://ohwr.org/project/gsi-timing-starter-kit/wikis/I/O-assignments does not work. Called from: https://ohwr.org/project/gsi-timing-starter-kit/wikis/Capture-timestamps and https://ohwr.org/project/gsi-timing-starter-kit/wikis/Read-the-current-time

• Also TODO list https://www.ohwr.org/project/gsi-timing-starter-kit/wikis/Todo not updated since 6y:)