Revise README for clarity and format updates

Updated the README to clarify supported formats and correct punctuation.

Author: nicosuave

README.md

@@ -1,8 +1,8 @@
 # Sidemantic
 
-A universal metrics layer for consistent metrics across your data stack.. Compatible with 15+ semantic model formats.
+A universal metrics layer for consistent metrics across your data stack. Compatible with 15+ semantic model formats.
 
-- **Formats:** Sidemantic, Cube, MetricFlow (dbt), LookML, Hex, Rill, Superset, Omni, BSL, GoodData LDM, Snowflake Cortex, Malloy, OSI, AtScale SML, ThoughtSpot TML
+- **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
 
 [Documentation](https://sidemantic.com) | [GitHub](https://github.com/sidequery/sidemantic) | [Discord](https://discord.com/invite/7MZ4UgSVvF) | [Demo](https://sidemantic.com/demo) (50+ MB download)