Update README.md (apache#8829)

small edits to the druid readme

README.md

@@ -27,9 +27,9 @@
 
 ## Apache Druid (incubating)
 
-Apache Druid (incubating) is a high performance analytics data store for event-driven data.
+Apache Druid (incubating) is a high performance real-time analytics database.
 
-*Disclaimer: Apache Druid is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the Apache Incubator. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. While incubation status is not necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF.*
+Druid is a next-gen open source alternative to analytical databases such as Vertica, Greenplum, and Exadata, and data warehouses such as Snowflake, BigQuery, and Redshift.
 
 ### Getting started
 
@@ -89,3 +89,4 @@ Please follow the [community guidelines](https://druid.apache.org/community/) fo
 
 [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
 
+*Disclaimer: Apache Druid is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the Apache Incubator. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. While incubation status is not necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF.*