README: reference JetBrains

Signed-off-by: Artur Troian <[email protected]>

README.md

@@ -6,6 +6,7 @@ VolantMQ
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/1a43f2f6e0534fd180d0a1b0b8c93614)](https://www.codacy.com/app/VolantMQ/volantmq?utm_source=github.com&utm_medium=referral&utm_content=VolantMQ/volantmq&utm_campaign=Badge_Grade)
 [![codecov.io](https://codecov.io/gh/VolantMQ/volantmq/coverage.svg?branch=master)](https://codecov.io/gh/VolantMQ/volantmq?branch=master)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
+<a href="https://jetbrains.com/go"> <img src="https://raw.githubusercontent.com/VolantMQ/volantmq/master/3rd-party/logo/jetbrains/logo-text.svg?sanitize=true" width="120"/></a>
 
 VolantMQ is a high performance MQTT broker that aims to be fully compliant with MQTT specs
 
@@ -41,4 +42,7 @@ docker run --rm -p 1883:1883 -p 8080:8080 -v $(pwd)/examples/config.yaml:/etc/vo
 - Port 8080 exposes healthcheck endpoints as well as pprof at http://localhost:8080/debug/pprof
 
 #### 
-### [Contributing guidelines](https://github.com/volantmq/volantmq/blob/master/CONTRIBUTING.md)
+### [Contributing guidelines](https://github.com/volantmq/volantmq/blob/master/CONTRIBUTING.md)
+
+### Credits
+Appreciate [JetBrains](https://jetbrains.com) for granted license