chore: Update README.md

README.md

@@ -1,8 +1,6 @@
 [![License: MPL 2.0](https://img.shields.io/badge/License-MPL_2.0-brightgreen.svg)](https://github.com/cardano-foundation/cf-token-metadata-registry/blob/main/LICENSE)
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 ---
@@ -64,14 +62,12 @@ are managed by the `api` project using [flyway](https://flywaydb.org/).
 
 Offchain metadata related:
 - [x] Expose CIP-26 compliant REST API
-- [x] Advanced querrying REST API
 
 WIP:
-- [ ] Expose write access functions via REST API for creating, modifying and deleting offchain metadata
+- [ ] Add [CIP-88](https://github.com/cardano-foundation/CIPs/tree/master/CIP-0088) support
 - [ ] Expose verification API for offchain metadata based on extended CIP-26 trust concept
 - [ ] Provide a CLI application for metadata creation and verification
 - [ ] Implement metadata verification based on public key registries
-- [ ] Implement metadata verification based on SSI trust registries
 
 ## Contributing