[Documentation] update instructions for v1.1 beta

[lixuna]

[Documentation] update instructions for v1.1 beta

Short description:

• Review and update as needed https://github.com/cncf/cnf-certification/blob/main/instructions.md

Areas that need updated:

• [ ] The tests - There are 55 tests included in the CNF Certification v1.1-beta.
• [ ] Running - Download the certification binary release of the test suite - update to v0.34 test suite release (https://github.com/cncf/cnf-testsuite/releases/tag/v0.34.0)
• [ ] tbd

[lixuna]

closing this as cnf certification has been moved to cnti

cnti team can create a new issue when the new instructions are available