docs: 📝 more honest readme

Author: fungiboletus

README.md

@@ -6,11 +6,10 @@ It enables the handling of small time series data of the edge efficiently to lar
 
 ## Features
 
-- **Flexible Time Series DataBase Storage**: Supports various time-series databases such as SQLite, PostgreSQL (with optional TimeScaleDB plugin), DuckDB, and ClickHouse, with the potential to extend support to other databases in the future.
-- **Data Lake Storage**: Supports Parquet files over S3 compatible object stores for long-term time-series data storage.
-- **Multiple Data Ingestion Protocols**: Easy data ingestion via HTTP REST API, MQTT, AMQP, KAFKA, OPCUA, and NATS.
+- **Flexible Time Series DataBase Storage**: Supports various time-series databases such as SQLite, PostgreSQL (with optional TimeScaleDB plugin), DuckDB, ClickHouse, BigQuery, and RRDCached, with the potential to extend support to other databases in the future.
+- **Multiple Data Ingestion Protocols**: Easy data ingestion via HTTP REST API and MQTT.
 - **Compatibility with Existing Pipelines**: Offers Prometheus Remote Write and InfluxDB line format support for seamless integration into existing sensor data pipelines.
-- **Data formats**: Supports various data formats like JSON, CSV, Parquet, or SenML.
+- **Data formats**: Supports various data formats like JSON, CSV, SenML, and Apache Arrow IPC.
 
 ## Architecture