Digitalcheck documents v1.3

The new version 1.3 of the Digitalcheck documents as of 5th June, 2024. The new documents are split into parts and contain updates to the wording.

What's Changed

• Update digitalcheck-documents.md Release V1.3 by @beliebig in #1
• Version1.3 split by @beliebig in #2
• Adding newsletter by @beliebig in #3

Full Changelog: v1.2...v1.3

Digitalcheck documents v1.2 as of 30.06.2023

Content of the Digitalcheck documents as of 30.06.2023