v1.1.1

Documentation patch over v1.1.0. No schema, SHACL or example content changed.

Branch and link documentation updated for the release model introduced with 1.1.0:

• main is the current release — GitHub Pages serves it, and it is protected, so the merge is the release
• New work goes on updates, merged to main by pull request and tagged v1.1.n
• The former reviewRevision202606 branch is retained as archive202609

Links that pointed at the old branch now follow main, so they track the current release.

Published artifacts are at https://cross-domain-interoperability-framework.github.io/profile-conceptscheme/, which always serves the newest release. Use this tag to pin to 1.1.1 exactly.