Update supported databases in README

Added ADBC to the list of supported databases.

Author: nicosuave

README.md

@@ -3,7 +3,7 @@
 A universal metrics layer for consistent metrics across your data stack. Compatible with 15+ semantic model formats.
 
 - **Supported Formats:** Sidemantic (YAML, Python or SQL), Cube, dbt MetricFlow, LookML, Hex, Rill, Superset, Omni, BSL, GoodData LDM, Snowflake Cortex, Malloy, OSI, AtScale SML, ThoughtSpot TML
-- **Databases:** DuckDB, MotherDuck, PostgreSQL, BigQuery, Snowflake, ClickHouse, Databricks, Spark SQL
+- **Databases:** DuckDB, MotherDuck, PostgreSQL, BigQuery, Snowflake, ClickHouse, Databricks, Spark SQL, ADBC
 
 [Documentation](https://sidemantic.com) | [GitHub](https://github.com/sidequery/sidemantic) | [Discord](https://discord.com/invite/7MZ4UgSVvF) | [Demo](https://sidemantic.com/demo) (50+ MB download)