Much more documentation work, things are getting a bit consumable right now

docs/source/contributing/memory_api.md

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+# 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.