update readme.

README.md

@@ -18,21 +18,7 @@ Based on the official Docker images from Elastic:
 * [Logstash](https://github.com/elastic/logstash/tree/master/docker)
 * [Kibana](https://github.com/elastic/kibana/tree/master/src/dev/build/tasks/os_packages/docker_generator)
 
-Other available stack variants:
-
-* [`tls`](https://github.com/deviantony/docker-elk/tree/tls): TLS encryption enabled in Elasticsearch.
-* [`searchguard`](https://github.com/deviantony/docker-elk/tree/searchguard): Search Guard support
-
----
-
-## Philosophy
-
-We aim at providing the simplest possible entry into the Elastic stack for anybody who feels like experimenting with
-this powerful combo of technologies. This project's default configuration is purposely minimal and unopinionated. It
-does not rely on any external dependency or custom automation to get things up and running.
-
-Instead, we believe in good documentation so that you can use this repository as a template, tweak it, and make it _your
-own_. [sherifabdlnaby/elastdocker][elastdocker] is one example among others of project that builds upon this idea.
+Visit [Flowygo](https://flowygo.com/blog/) to find useful tutorial on the ELK stack and other technologies.
 
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