Added intro

Signed-off-by: Dj Walker-Morgan <[email protected]>

Author: djw-m

advocacy_docs/edb-postgres-ai/ai-accelerator/rel_notes/src/rel_notes_2.1.1.yml

@@ -2,7 +2,7 @@ product: AI Accelerator - Pipelines
 version: 2.1.1
 date: 3 February 2025
 intro: |
- 
+  In this release, we add support for Nvida NIM, introduce new model names, and improve the retriever pipeline.
 highlights: |
  - Support for Nvidia NIM added.
  - `embeddings` and `completions` are new model names.