Wordsmith project description (#12778)

* Update description

* Fmt

* Update README.md

Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>

* refine

---------

Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>

Author: matthewmturner

README.md

@@ -44,8 +44,9 @@
 DataFusion is an extensible query engine written in [Rust] that
 uses [Apache Arrow] as its in-memory format.
 
-The DataFusion libraries in this repository are used to build data-centric system software. DataFusion also provides the
-following subprojects, which are packaged versions of DataFusion intended for end users.
+This crate provides libraries and binaries for developers building fast and
+feature rich database and analytic systems, customized to particular workloads.
+See [use cases] for examples. The following related subprojects target end users:
 
 - [DataFusion Python](https://github.com/apache/datafusion-python/) offers a Python interface for SQL and DataFrame
   queries.
@@ -54,13 +55,10 @@ following subprojects, which are packaged versions of DataFusion intended for en
 - [DataFusion Comet](https://github.com/apache/datafusion-comet/) is an accelerator for Apache Spark based on
   DataFusion.
 
-The target audience for the DataFusion crates in this repository are
-developers building fast and feature rich database and analytic systems,
-customized to particular workloads. See [use cases] for examples.
-
-DataFusion offers [SQL] and [`Dataframe`] APIs,
-excellent [performance], built-in support for CSV, Parquet, JSON, and Avro,
-extensive customization, and a great community.
+"Out of the box,"
+DataFusion offers [SQL] and [`Dataframe`] APIs, excellent [performance],
+built-in support for CSV, Parquet, JSON, and Avro, extensive customization, and
+a great community.
 
 DataFusion features a full query planner, a columnar, streaming, multi-threaded,
 vectorized execution engine, and partitioned data sources. You can

docs/source/index.rst

@@ -36,9 +36,11 @@ Apache DataFusion
 DataFusion is an extensible query engine written in `Rust <http://rustlang.org>`_ that
 uses `Apache Arrow <https://arrow.apache.org>`_ as its in-memory format.
 
-This documentation is for the `core DataFusion project <https://github.com/apache/datafusion>`_, which contains
-libraries that are used to build data-centric system software. DataFusion also offers the following subprojects, which
-provide packaged versions of DataFusion intended for end users, and these have separate documentation.
+The documentation on this site is for the `core DataFusion project <https://github.com/apache/datafusion>`_, which contains
+libraries and binaries for developers building fast and feature rich database and analytic systems,
+customized to particular workloads. See `use cases <https://datafusion.apache.org/user-guide/introduction.html#use-cases>`_ for examples.
+
+The following related subprojects target end users and have separate documentation.
 
 - `DataFusion Python <https://datafusion.apache.org/python/>`_ offers a Python interface for SQL and DataFrame
   queries.
@@ -47,10 +49,6 @@ provide packaged versions of DataFusion intended for end users, and these have s
 - `DataFusion Comet <https://datafusion.apache.org/comet/>`_ is an accelerator for Apache Spark based on
   DataFusion.
 
-DataFusion's target users are
-developers building fast and feature rich database and analytic systems,
-customized to particular workloads. See `use cases <https://datafusion.apache.org/user-guide/introduction.html#use-cases>`_ for examples.
-
 "Out of the box," DataFusion offers `SQL <https://datafusion.apache.org/user-guide/sql/index.html>`_
 and `Dataframe <https://docs.rs/datafusion/latest/datafusion/dataframe/struct.DataFrame.html>`_ APIs,
 excellent `performance <https://benchmark.clickhouse.com/>`_, built-in support for CSV, Parquet, JSON, and Avro,