Cleanup user guide known users section (#17834)

* Cleanup usages + Add Vortex

* Move to `less active projects`

* Sort

* fmt

Author: blaginin

docs/source/user-guide/introduction.md

@@ -78,7 +78,7 @@ Here are some example systems built using DataFusion:
 - Specialized Analytical Database systems such as [HoraeDB] and more general Apache Spark like system such as [Ballista]
 - New query language engines such as [prql-query] and accelerators such as [VegaFusion]
 - Research platform for new Database Systems, such as [Flock]
-- SQL support to another library, such as [dask sql]
+- SQL support to another library, such as [Vortex]
 - Streaming data platforms such as [Synnada]
 - Tools for reading / sorting / transcoding Parquet, CSV, AVRO, and JSON files such as [qv]
 - Native Spark runtime replacement such as [Auron]
@@ -101,11 +101,10 @@ Here are some active projects using DataFusion:
 - [CnosDB] Open Source Distributed Time Series Database
 - [Comet](https://github.com/apache/datafusion-comet) Apache Spark native query execution plugin
 - [Cube Store] Cube’s universal semantic layer platform is the next evolution of OLAP technology for AI, BI, spreadsheets, and embedded analytics
-- [Dask SQL] Distributed SQL query engine in Python
 - [datafusion-dft](https://github.com/datafusion-contrib/datafusion-dft) Batteries included CLI, TUI, and server implementations for DataFusion.
 - [dbt Fusion engine](https://github.com/dbt-labs/dbt-fusion) The dbt Fusion engine, written in Rust, designed for speed and correctness with a native SQL understanding across DWH SQL dialects.
 - [delta-rs] Native Rust implementation of Delta Lake
-- [Exon](https://github.com/wheretrue/exon) Analysis toolkit for life-science applications
+- [EDB Postgres Lakehouse] built with [Seafowl]
 - [Feldera](https://github.com/feldera/feldera) Fast query engine for incremental computation
 - [Funnel](https://funnel.io/) Data Platform powering Marketing Intelligence applications.
 - [GlareDB](https://github.com/GlareDB/glaredb) Fast SQL database for querying and analyzing distributed data.
@@ -125,19 +124,21 @@ Here are some active projects using DataFusion:
 - [Restate](https://github.com/restatedev) Easily build resilient applications using distributed durable async/await
 - [ROAPI] Create full-fledged APIs for slowly moving datasets without writing a single line of code
 - [Sail](https://github.com/lakehq/sail) Unifying stream, batch and AI workloads with Apache Spark compatibility
-- [Seafowl] CDN-friendly analytical database
 - [SedonaDB](https://github.com/apache/sedona-db) A single-node analytical database engine with geospatial as a first-class citizen
 - [Sleeper](https://github.com/gchq/sleeper) Serverless, cloud-native, log-structured merge tree based, scalable key-value store
 - [Spice.ai] Building blocks for data-driven AI applications
 - [Synnada] Streaming-first framework for data products
 - [VegaFusion] Server-side acceleration for the [Vega](https://vega.github.io/) visualization grammar
+- [Vortex] An extensible, state of the art columnar file format
 - [Telemetry](https://telemetry.sh/) Structured logging made easy
 - [Xorq](https://github.com/xorq-labs/xorq/) Xorq is a multi-engine batch transformation framework built on Ibis, DataFusion and Arrow
 
 Here are some less active projects that used DataFusion:
 
 - [bdt](https://github.com/datafusion-contrib/bdt) Boring Data Tool
 - [Cloudfuse Buzz]
+- [Dask SQL] Distributed SQL query engine in Python
+- [Exon] Analysis toolkit for life-science applications
 - [Flock]
 - [Tensorbase]
 
@@ -149,6 +150,8 @@ Here are some less active projects that used DataFusion:
 [dask sql]: https://github.com/dask-contrib/dask-sql
 [datafusion-tui]: https://github.com/datafusion-contrib/datafusion-tui
 [delta-rs]: https://github.com/delta-io/delta-rs
+[edb postgres lakehouse]: https://www.enterprisedb.com/products/analytics
+[exon]: https://github.com/wheretrue/exon
 [flock]: https://github.com/flock-lab/flock
 [kamu]: https://github.com/kamu-data/kamu-cli
 [greptimedb]: https://github.com/GreptimeTeam/greptimedb
@@ -163,7 +166,8 @@ Here are some less active projects that used DataFusion:
 [spice.ai]: https://github.com/spiceai/spiceai
 [synnada]: https://synnada.ai/
 [tensorbase]: https://github.com/tensorbase/tensorbase
-[vegafusion]: https://vegafusion.io/ "if you know of another project, please submit a PR to add a link!"
+[vegafusion]: https://vegafusion.io/
+[vortex]: https://vortex.dev/ "if you know of another project, please submit a PR to add a link!"
 
 ## Integrations and Extensions