Rework README

Previews

• GitHub https://github.com/postgres-ai/database-lab-engine/blob/rework-readme/README.md
• GitLab https://gitlab.com/postgres-ai/database-lab/-/blob/rework-readme/README.md

Changes

• Added CODE_OF_CONDUCT.md
• Added CONTRIBUTING.md
• Added SECURITY.md
• Changed logo graphics (wide logo, new font, Cuprum)
• New section: Features
• Animated GIF demonstrating fast cloning of 1 TiB database
• Balance between GitHub and GitLab (the latter is supposed to be source of truth for the code, but both are fine for communicating with community)
• "Powered by" graphics for dark and light backgrounds
• Brief license description
• More words about Community throughout the texts

TODO

• MR desc
• proofread
• polish graphics
• badges

README.md

-<p><img width="500" src="./assets/dle.svg" border="0" /></p>
-
----
-
-# Database Lab Engine (DLE)
-
-<a href="https://postgres.ai"><img src="https://img.shields.io/badge/Postgres-AI-orange.svg?style=flat"></a>&nbsp;&nbsp;[![Latest release](https://img.shields.io/github/v/release/postgres-ai/database-lab-engine?color=orange)](https://github.com/postgres-ai/database-lab-engine/releases/latest)
-
-<a href="https://slack.postgres.ai"><img src="https://img.shields.io/badge/chat-slack-blue.svg?logo=slack&style=flat"></a>&nbsp;&nbsp;<a href="https://twitter.com/intent/follow?screen_name=Database_lab"><img src="https://img.shields.io/badge/Follow-Database_Lab-blue.svg?style=flat&logo=twitter&logoColor=white"></a>
-
-
-Database Lab Engine (DLE) is an open source technology that allows blazing-fast cloning of Postgres databases:
-
+<div align="center"><img width="500" src="./assets/dle.svg" border="0" /></div>
+
+<div align="center"><h1 align="center">Database Lab Engine (DLE)</h1></div>
+
+<div align="center">
+  <a href="https://twitter.com/intent/tweet?via=Database_Lab&url=https://github.com/postgres-ai/database-lab-engine/&text=Thin%20@PostgreSQL%20clones%20–%20DLE%20provides%20blazing%20fast%20database%20cloning%20to%20build%20powerful%20development,%20test,%20QA,%20staging%20environments.">
+    <img src="https://img.shields.io/twitter/url/https/github.com/postgres-ai/database-lab-engine.svg?style=for-the-badge" alt="twitter">
+  </a>
+</div>
+
+<div align="center">
+  <strong>:zap: Blazing-fast cloning of PostgreSQL databases :elephant:</strong><br>
+  Thin clones of PostgreSQL to build powerful development, test, QA, staging environments.<br>
+  <sub>Available for any PostgreSQL, including AWS RDS, GCP CloudSQL, Heroku, Digital Ocean, and self-managed instances.</sub>
+</div>
+
+<br />
+
+<div align="center">
+  <a href="https://postgres.ai" target="blank"><img src="https://img.shields.io/badge/Postgres-AI-orange.svg?style=flat" /></a> <a href="https://github.com/postgres-ai/database-lab-engine/releases/latest"><img src="https://img.shields.io/github/v/release/postgres-ai/database-lab-engine?color=orange&label=Database+Lab&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACYAAAAYCAYAAACWTY9zAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAPYSURBVHgBrVc9SCNBFH7JpVCrjdpotVgFES9qp8LdgaXNFWLnJY2lsVC0zIGKQeEujRw2508lNndqISKaA38a/4Io/qBGQc2B6IKgImLufYPj7W42Jsb9YNidb2ffvHnzzZsZB1mgra3to9Pp9Docjvdc9XJR3G63qm9zdXUV44fGJZZIJKKPj4+R/v7+CNkEh3wJBoPKzc1NIC8vr7WoqEgpLS2l4uJiYodEscLd3R2dnZ2Jcnh4SNvb23ByiG2E2R6cpo6Oju/s9EZfX9+Q/C8F95O5P5ITjnV2dqq5ubnz1dXVam1tLeXk5FA24CjS6uoqLS4uxtjpT729vbGLi4ujubk5lflf3IcfDuu4CHOfJbe8vKwuLCwITno7f3p6mrALBwcHCdiEba4egYP97u7uYDru8vIy0dPT8835NFg1Pz+f7MLT1Kt6DrIoKyv7ko7Dvx6Pxycdo3A4LKbirYDWRkdHLb/t7u5mxO3t7SkuWWlubhYGoa+qqiriBSBGlAkwoK2tLYhf1Ovr62lwcNDwfXJykgoLCzPiELVnx1BpaWkRK2xtbU2IGA3Bw1kWpMGZ29tb0jRNPNGmpKSE6urqxFOPgYEBcrlcwtmVlZWMOF48/x2TQJT0kZIpwQzpbKpUIuHz+YjTh4FrbGykgoKCFzmX3gGrNAHOHIXXwOwUYHbKinsWP+YWzr0VsDE+Pp7EQxZmoafisIAMGoNgkfFl1n8NMN0QP7RZU1Nj+IaOZmdnDUJ/iTOIH8LFasTHqakp0ZHUG6bTrCUpfk6I4h+0w4ACgYBoDxsAbzFUUVFBTU1NNDMzkxGH2TOIH53DORQZBdm5Ocehc6SUyspKQnJOtY21t7dnxSWtSj3MK/StQJQz4aDTZ/Fjbu2ClS1EfGdnJ4k7OTlJ4jBTLj2B1YRpzDY9SPHqp5WPUrS0tCQ64z3QwKG9FL+eM4i/oaFBkHzsoJGREeFcOvGfn5+LJ/7DO9rI7M9HKdFubGyMysvLBT8xMWHgsA1acQiQQWMwKKOFzuQBEOI35zg4gcyvKArhDCcHYIbf78+KSyl+vZN24f7+XjNzVuJHOyn+GCJjF5721pieQ+Ll8lvPoc/19fUkbnNzc1hEjC8dfj7yzHPGViH+dBtzKmC6oVEcrWETHJ+tKBqNwqlwKBQKWnCtVtw7kGxM83q9w8fHx3/ZqIdHrFxfX9PDw4PQEY4jVsBKhuhxFpuenkbR9vf3Q9ze39XVFUcb3sTd8Xj8K3f2Q/6XCeew6pBX1Ee+seD69oGrChfV6vrGR3SN22zg+sbXvQ2+fETIJvwDtXvnpBGzG2wAAAAASUVORK5CYII=" alt="Latest release" /></a> <a href="https://gitlab.com/postgres-ai/database-lab/-/pipelines" target="blank"><img src="https://gitlab.com/postgres-ai/database-lab//badges/master/pipeline.svg" alt="CI pipeline status" /></a> <a href="https://goreportcard.com/report/gitlab.com/postgres-ai/database-lab" target="blank"><img src="https://goreportcard.com/badge/gitlab.com/postgres-ai/database-lab" alt="Go report" /></a> <a href="./CODE_OF_CONDUCT.md"><img src="https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg?color=blue" alt="Contributor Covenant" /></a> <a href="https://slack.postgres.ai" target="blank"><img src="https://img.shields.io/badge/Chat-Slack-blue.svg?logo=slack&style=flat" alt="Community Slack" /></a> <a href="https://twitter.com/intent/follow?screen_name=Database_Lab" target="blank"><img src="https://img.shields.io/twitter/follow/Database_Lab.svg?style=social&maxAge=3600" alt="Twitter Follow" /></a>
+</div>
+
+<br />
+
+<div align="center">
+  <h3>
+    <a href="#features">Features</a>
+    <span> | </span>
+    <a href="https://postgres.ai/docs">Documentation</a>
+    <span> | </span>
+    <a href="https://postgres.ai/blog/tags/database-lab-engine">Blog</a>
+    <span> | </span>
+    <a href="#community-support">Community & support</a>
+    <span> | </span>
+    <a href="./CONTRIBUTING.md">Contributing</a>
+  </h3>
+</div>
+
+## Why DLE?
 - Build dev/QA/staging environments based on full-size production-like databases.
 - Provide temporary full-size database clones for SQL query analysis and optimization (see also: [SQL optimization chatbot Joe](https://gitlab.com/postgres-ai/joe)).
 - Automatically test database changes in CI/CD pipelines to avoid incidents in production.
@@ -132,13 +158,17 @@ DLE source code is licensed under the OSI-approved open source license GNU Affer
 
 Reach out to the Postgres.ai team if you want a trial or commercial license that does not contain the GPL clauses: [Contact page](https://postgres.ai/contact).
 
+<!--
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fpostgres-ai%2Fdatabase-lab-engine.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fpostgres-ai%2Fdatabase-lab-engine?ref=badge_large)
+-->
+
 ## Community & Support
 - ["Database Lab Engine Community Covenant Code of Conduct"](./CODE_OF_CONDUCT.md)
 - Where to get help: [Contact page](https://postgres.ai/contact)
 - [Community Slack](https://slack.postgres.ai)
 - If you need to report a security issue, follow instructions in ["Database Lab Engine security guidelines"](./SECURITY.md).
 
-[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg)](./CODE_OF_CONDUCT.md)
+[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg?color=blue)](./CODE_OF_CONDUCT.md)