chore(README): modify some badges

README-CN.md

@@ -1,10 +1,11 @@
 # EMQ X Broker
 
-[![GitHub Release](https://img.shields.io/github/release/emqx/emqx?color=brightgreen)](https://github.com/emqx/emqx/releases)
-[![Build Status](https://travis-ci.org/emqx/emqx.svg)](https://travis-ci.org/emqx/emqx)
-[![Coverage Status](https://coveralls.io/repos/github/emqx/emqx/badge.svg)](https://coveralls.io/github/emqx/emqx)
-[![Docker Pulls](https://img.shields.io/docker/pulls/emqx/emqx)](https://hub.docker.com/r/emqx/emqx)
+[![GitHub Release](https://img.shields.io/github/release/emqx/emqx?color=brightgreen&label=Release)](https://github.com/emqx/emqx/releases)
+[![Build Status](https://img.shields.io/travis/emqx/emqx?label=Build)](https://travis-ci.org/emqx/emqx)
+[![Coverage Status](https://img.shields.io/coveralls/github/emqx/emqx/master?label=Coverage)](https://coveralls.io/github/emqx/emqx?branch=master)
+[![Docker Pulls](https://img.shields.io/docker/pulls/emqx/emqx?label=Docker%20Pulls)](https://hub.docker.com/r/emqx/emqx)
 [![Slack](https://img.shields.io/badge/Slack-EMQ%20X-39AE85?logo=slack)](https://slack-invite.emqx.io/)
+[![Discord](https://img.shields.io/discord/931086341838622751?label=Discord&logo=discord)](https://discord.gg/xYGf3fQnES)
 [![Twitter](https://img.shields.io/badge/Twitter-EMQ-1DA1F2?logo=twitter)](https://twitter.com/EMQTech)
 [![Community](https://img.shields.io/badge/Community-EMQ%20X-yellow)](https://askemq.com)
 [![YouTube](https://img.shields.io/badge/Subscribe-EMQ%20中文-FF0000?logo=youtube)](https://www.youtube.com/channel/UCir_r04HIsLjf2qqyZ4A8Cg)

README-JP.md

@@ -1,10 +1,11 @@
 # EMQ X Broker
 
-[![GitHub Release](https://img.shields.io/github/release/emqx/emqx?color=brightgreen)](https://github.com/emqx/emqx/releases)
-[![Build Status](https://travis-ci.org/emqx/emqx.svg)](https://travis-ci.org/emqx/emqx)
-[![Coverage Status](https://coveralls.io/repos/github/emqx/emqx/badge.svg)](https://coveralls.io/github/emqx/emqx)
-[![Docker Pulls](https://img.shields.io/docker/pulls/emqx/emqx)](https://hub.docker.com/r/emqx/emqx)
+[![GitHub Release](https://img.shields.io/github/release/emqx/emqx?color=brightgreen&label=Release)](https://github.com/emqx/emqx/releases)
+[![Build Status](https://img.shields.io/travis/emqx/emqx?label=Build)](https://travis-ci.org/emqx/emqx)
+[![Coverage Status](https://img.shields.io/coveralls/github/emqx/emqx/master?label=Coverage)](https://coveralls.io/github/emqx/emqx?branch=master)
+[![Docker Pulls](https://img.shields.io/docker/pulls/emqx/emqx?label=Docker%20Pulls)](https://hub.docker.com/r/emqx/emqx)
 [![Slack](https://img.shields.io/badge/Slack-EMQ%20X-39AE85?logo=slack)](https://slack-invite.emqx.io/)
+[![Discord](https://img.shields.io/discord/931086341838622751?label=Discord&logo=discord)](https://discord.gg/xYGf3fQnES)
 [![Twitter](https://img.shields.io/badge/Twitter-EMQ-1DA1F2?logo=twitter)](https://twitter.com/EMQTech)
 [![YouTube](https://img.shields.io/badge/Subscribe-EMQ-FF0000?logo=youtube)](https://www.youtube.com/channel/UC5FjR77ErAxvZENEWzQaO5Q)
 

README-RU.md

@@ -1,10 +1,11 @@
 # Брокер EMQ X
 
-[![GitHub Release](https://img.shields.io/github/release/emqx/emqx?color=brightgreen)](https://github.com/emqx/emqx/releases)
-[![Build Status](https://travis-ci.org/emqx/emqx.svg)](https://travis-ci.org/emqx/emqx)
-[![Coverage Status](https://coveralls.io/repos/github/emqx/emqx/badge.svg?branch=master)](https://coveralls.io/github/emqx/emqx?branch=master)
-[![Docker Pulls](https://img.shields.io/docker/pulls/emqx/emqx)](https://hub.docker.com/r/emqx/emqx)
+[![GitHub Release](https://img.shields.io/github/release/emqx/emqx?color=brightgreen&label=Release)](https://github.com/emqx/emqx/releases)
+[![Build Status](https://img.shields.io/travis/emqx/emqx?label=Build)](https://travis-ci.org/emqx/emqx)
+[![Coverage Status](https://img.shields.io/coveralls/github/emqx/emqx/master?label=Coverage)](https://coveralls.io/github/emqx/emqx?branch=master)
+[![Docker Pulls](https://img.shields.io/docker/pulls/emqx/emqx?label=Docker%20Pulls)](https://hub.docker.com/r/emqx/emqx)
 [![Slack](https://img.shields.io/badge/Slack-EMQ%20X-39AE85?logo=slack)](https://slack-invite.emqx.io/)
+[![Discord](https://img.shields.io/discord/931086341838622751?label=Discord&logo=discord)](https://discord.gg/xYGf3fQnES)
 [![Twitter](https://img.shields.io/badge/Follow-EMQ-1DA1F2?logo=twitter)](https://twitter.com/EMQTech)
 [![Community](https://img.shields.io/badge/Community-EMQ%20X-yellow?logo=github)](https://github.com/emqx/emqx/discussions)
 [![YouTube](https://img.shields.io/badge/Subscribe-EMQ-FF0000?logo=youtube)](https://www.youtube.com/channel/UC5FjR77ErAxvZENEWzQaO5Q)

README.md

@@ -1,10 +1,11 @@
 # EMQ X Broker
 
-[![GitHub Release](https://img.shields.io/github/release/emqx/emqx?color=brightgreen)](https://github.com/emqx/emqx/releases)
-[![Build Status](https://travis-ci.org/emqx/emqx.svg)](https://travis-ci.org/emqx/emqx)
-[![Coverage Status](https://coveralls.io/repos/github/emqx/emqx/badge.svg?branch=master)](https://coveralls.io/github/emqx/emqx?branch=master)
-[![Docker Pulls](https://img.shields.io/docker/pulls/emqx/emqx)](https://hub.docker.com/r/emqx/emqx)
+[![GitHub Release](https://img.shields.io/github/release/emqx/emqx?color=brightgreen&label=Release)](https://github.com/emqx/emqx/releases)
+[![Build Status](https://img.shields.io/travis/emqx/emqx?label=Build)](https://travis-ci.org/emqx/emqx)
+[![Coverage Status](https://img.shields.io/coveralls/github/emqx/emqx/master?label=Coverage)](https://coveralls.io/github/emqx/emqx?branch=master)
+[![Docker Pulls](https://img.shields.io/docker/pulls/emqx/emqx?label=Docker%20Pulls)](https://hub.docker.com/r/emqx/emqx)
 [![Slack](https://img.shields.io/badge/Slack-EMQ%20X-39AE85?logo=slack)](https://slack-invite.emqx.io/)
+[![Discord](https://img.shields.io/discord/931086341838622751?label=Discord&logo=discord)](https://discord.gg/xYGf3fQnES)
 [![Twitter](https://img.shields.io/badge/Follow-EMQ-1DA1F2?logo=twitter)](https://twitter.com/EMQTech)
 [![YouTube](https://img.shields.io/badge/Subscribe-EMQ-FF0000?logo=youtube)](https://www.youtube.com/channel/UC5FjR77ErAxvZENEWzQaO5Q)
 
@@ -14,7 +15,7 @@ English | [简体中文](./README-CN.md) | [日本語](./README-JP.md) | [рус
 
 *EMQ X* broker is a fully open source, highly scalable, highly available distributed MQTT messaging broker for IoT, M2M and Mobile applications that can handle tens of millions of concurrent clients.
 
-Starting from 3.0 release, *EMQ X* broker fully supports MQTT V5.0 protocol specifications and backward compatible with MQTT V3.1 and V3.1.1,  as well as other communication protocols such as MQTT-SN, CoAP, LwM2M, WebSocket and STOMP. The 3.0 release of the *EMQ X* broker can scale to 10+ million concurrent MQTT connections on one cluster.
+Starting from 3.0 release, *EMQ X* broker fully supports MQTT V5.0 protocol specifications and backward compatible with MQTT V3.1 and V3.1.1,  as well as other communication protocols such as MQTT-SN, CoAP, LwM2M, WebSocket and STOMP. The 3.0 release of the *EMQ X* broker can scale to 10+ million concurrent MQTT connections on one cluster.
 
 - For full list of new features, please read [EMQ X Release Notes](https://github.com/emqx/emqx/releases).
 - For more information, please visit [EMQ X homepage](https://www.emqx.io/).