Steps to reproduce

The DSNP Spec Glossary has a bunch of outdated and overly specific references, such as 'Announcement - An item of data, typically an image or note, posted to the blockchain via a "Batch Publication"' and 'Identity Contract - The smart contract used to store a user's delegated public addresses and permissions, see "Contract address"', which should be updated to reflect current reality.

We may wish to add more definitions.

Expected behavior

• We no longer have an Identity Contract; that was the POC implementation on Ethereum.
• Announcements don't have to be posted in batches nor do they have to be posted to a blockchain.

Any other comments?