Updates to ReadTheDocs (#859)

Move evals section to AI Agents section 
drop from top level and other minor fixes

docs/source/contributing/memory_api.md

@@ -1,53 +0,0 @@
-# Memory API Providers
-
-This guide gives you references to switch between different memory API providers.
-
-##### pgvector
-1. Start running the pgvector server:
-
-```
-$ docker run --network host --name mypostgres -it -p 5432:5432 -e POSTGRES_PASSWORD=mysecretpassword -e POSTGRES_USER=postgres -e POSTGRES_DB=postgres pgvector/pgvector:pg16
-```
-
-2. Edit the `run.yaml` file to point to the pgvector server.
-```
-memory:
-  - provider_id: pgvector
-    provider_type: remote::pgvector
-    config:
-      host: 127.0.0.1
-      port: 5432
-      db: postgres
-      user: postgres
-      password: mysecretpassword
-```
-
-> [!NOTE]
-> If you get a `RuntimeError: Vector extension is not installed.`. You will need to run `CREATE EXTENSION IF NOT EXISTS vector;` to include the vector extension. E.g.
-
-```
-docker exec -it mypostgres ./bin/psql -U postgres
-postgres=# CREATE EXTENSION IF NOT EXISTS vector;
-postgres=# SELECT extname from pg_extension;
- extname
-```
-
-3. Run `docker compose up` with the updated `run.yaml` file.
-
-##### chromadb
-1. Start running chromadb server
-```
-docker run -it --network host --name chromadb -p 6000:6000 -v ./chroma_vdb:/chroma/chroma -e IS_PERSISTENT=TRUE chromadb/chroma:latest
-```
-
-2. Edit the `run.yaml` file to point to the chromadb server.
-```
-memory:
-  - provider_id: remote::chromadb
-    provider_type: remote::chromadb
-    config:
-      host: localhost
-      port: 6000
-```
-
-3. Run `docker compose up` with the updated `run.yaml` file.