Update README.md

Author: Shanabunga

README.md

@@ -6,7 +6,7 @@ This repository consists of a [dbt](https://www.getdbt.com/) project that transf
 To learn more about the overall architecture design & strategy can be found in our centralized handbook:
 - [Data Architecture Handbook](https://docs.google.com/document/d/1WmOnx_5QaGmo-kNWitd9jSEwvEnwqxiS0ZA1jmMV-v0/edit?usp=sharing)
 
-### Sources:
+## ** Sources: **
 Raw, unformatted data loaded directly from source systems using various data tools.
 - `nba_data` - The primary source of NBA statistics data captured from an API & loaded via Sling/Airbyte.
     - Schema: `analytics.raw_nba_data`