fix syntax errors, refine the introduction

Signed-off-by: 周鹏飞@yunify <[email protected]>

README.md

@@ -8,7 +8,7 @@
 
 ## What is KubeSphere
 
-[KubeSphere](https://kubesphere.io/) is an enterprise-grade multi-tenant container management platform that built on [Kubernetes](https://kubernetes.io). It provides an easy-to-use UI for users to create computing resources with a few clicks and one-click deployment, which reduces the learning curve and empower the DevOps teams. It greatly reduces the complexity of the daily work of development, testing, operation and maintenance, aiming to solve the pain spots of Kubernetes' storage, network, security and ease of use, etc.
+[KubeSphere](https://kubesphere.io/) is an enterprise-grade multi-tenant container management platform that built on [Kubernetes](https://kubernetes.io). It provides an easy-to-use UI for users to create computing resources with a few clicks, which reduces the learning curve and empowers the DevOps teams. It greatly reduces the complexity of the daily work of development, testing, operation and maintenance, aiming to alleviate the pain spots of Kubernetes' storage, network, security and ease of use, etc.
 
 > See this [document](https://docs.kubesphere.io/advanced-v2.0/zh-CN/introduction/intro/) that describes the KubeSphere landscape and details.