update redash description (use simpler, official description)

README.md

@@ -132,7 +132,7 @@ _Related: [Personal Dashboards](#personal-dashboards)_
 - [Open Web Analytics](http://www.openwebanalytics.com/) - Web analytics framework that lets you stay in control of how you instrument and analyze the use of your websites and applications. ([Source Code](https://github.com/padams/Open-Web-Analytics)) `GPL-2.0` `PHP`
 - [Plausible Analytics](https://plausible.io/) - Simple, open-source, lightweight (< 1 KB) and privacy-friendly web analytics. ([Source Code](https://github.com/plausible/analytics/)) `MIT` `Elixir`
 - [PostHog](https://posthog.com) - Product analytics, session recording, feature flagging and a/b testing that you can self-host. Alternative to Mixpanel/Amplitude/Heap/HotJar/Optimizely. ([Source Code](https://github.com/posthog/posthog)) `MIT` `Python`
-- [Redash](http://redash.io) - connect to over 18 types of databases (SQL and "NoSQL"), query your data, visualize it and create dashboards. Everything has a URL that can be shared. Slack and HipChat integration. ([Demo](https://demo.redash.io), [Source Code](https://github.com/getredash/redash)) `BSD-2-Clause` `Python`
+- [Redash](http://redash.io) - Connect and query your data sources, build dashboards to visualize data and share them with your company. ([Demo](https://demo.redash.io), [Source Code](https://github.com/getredash/redash)) `BSD-2-Clause` `Python`
 - [RudderStack](https://rudderstack.com/) - The warehouse-first customer data platform (CDP) that builds your CDP on your data warehouse for you. RudderStack makes it easy to collect, unify, transform, and store your customer data as well as route it securely to a wide range of common, popular marketing, sales, and product tools (open-source alternative to Segment et al.). ([Source Code](https://github.com/rudderlabs/rudder-server/)) `AGPL-3.0` `Go`
 - [Shynet](https://github.com/milesmcc/shynet) - Modern, privacy-friendly, and detailed web analytics that works without cookies or JS. `Apache-2.0` `Python`
 - [Socioboard](https://socioboard.org/) - `⚠` Social media management, analytics, and reporting platform supporting nine social media networks out-of-the-box. ([Source Code](https://github.com/socioboard/Socioboard-4.0)) `GPL-3.0` `C#/JavaScript`