Update README.md

README.md

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-1. What is ZenTao for?
+1. What is ZenTao?
 
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-ZenTao is an open source project management software, developed by Qingdao Nature Easy Soft Network Technology Co., Ltd. Combining product management, project management, quality management, document management, organization management and to-do management, ZenTao is a professional R & D project management software, covering the core processes of R & D project management. 
+ZenTao is an open source project management software, developed by Qingdao Nature Easy Soft Network Technology Co., Ltd. Integrating product management, project management, quality management, document management, organization management and to-do management, ZenTao is a professional development project management tool, covering the core processes of development project management. 
 
-ZenTao is practical and pragmatic. It has full features and a beautiful interface, and is easy to operate. Zentao is well structured and can be flexibly extended. It also has powerful search features, various reports and API. 
+ZenTao is practical and pragmatic. It has full features and a beautiful interface, and is easy to operate. Zentao is well structured and can be extended flexibly. It also has powerful search features, various reports and API. 
 
-ZenTao focuses on R & D project management!
+ZenTao focuses on development project management!
 
-2. Why called ZenTao?
+2. Why is it called ZenTao?
 
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-Zen(禅) and Tao(道) are the two Chinese characters that have rich meanings in both religion and culture. ZenTao Project Management Software take the cutural meaning of Zen and Tao, and is expected to convey our understanding and thinking on management. Inspired by The Tao of Programming and The Zen of Programming, we named our software ZenTao.
+Zen(禅) and Tao(道) are two Chinese characters that have rich meanings in both religion and culture. ZenTao Project Management Software takes the cutural meaning of Zen and Tao, and is expected to convey our understanding and thinking on management. Inspired by The Tao of Programming and The Zen of Programming, we named our software ZenTao.
 
 3. Design philosophy of ZenTao Project Management Software
 
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-The main management philosophy of ZenTao Project Management Software is based on Scrum, an internationally popular agile management methodology. Scrum is very pragmatic and easy to operate, so it fits in the fast iterative software development projects. However, Scrum only defines the core management framework. There are still many details and processes that need to be extended and developed. Based on the philosophy of Scrum and the observation of the current R&D situation in China, ZenTao integrates bug management, test case management, release management and document management, and it covers the entire life cycle of software R&D. In ZenTao, the concept of product, project and test is clearly defined. Product team, development team and testing team coordinate and check with each other while they function differently. The three teams interact with each other through working on stories, tasks and bugs, and eventually deliver the product with quality.
+The main management philosophy of ZenTao Project Management Software is based on Scrum, an internationally popular Agile management methodology. Scrum is very pragmatic and easy to operate, so it fits in the fast iterative software development projects. However, Scrum only defines the core management framework. Therefore, details and workflows have to be extended and developed. Based on the philosophy of Scrum and the observation of the current development situation in China, ZenTao integrates bug management, test management, release management and document management, which covers the entire life cycle of software development. In ZenTao, the concept of product, project and test is clearly defined. Product team, development team and QA team coordinate and check with each other while they function differently. The three teams interact with each other through working on stories, tasks and bugs, and eventually deliver the product with quality.
 
 4. Why choose ZenTao Project Management Software?
 
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-* ZenTao is a professional R&D project management software and canot be replaced by simple project management software.
-* ZenTao has precise and pragmatic management philosphy, which will accelerate agile development.
-* ZenTao has full features as a project management software: you don’t need to integrate several systems together, like mantisbt + trac + testlink.
-* Open source codes and flexible extension mechanism, convenient for uses and secondary development of companies.
+* ZenTao is a professional development project management software and canot be replaced by one simple project management software.
+* ZenTao has precise and pragmatic management philosphy, which will accelerate Agile development.
+* ZenTao has full features as a project management software, so you don’t have to integrate several systems together, like mantisbt + trac + testlink.
+* Open source codes and flexible extension mechanism. It is convenient to use and develop based on ZenTao.
 * Underlying framework and front-end UI framework developed independently; robust and stable with beautiful interface and friendly interaction.
 * Perfect community mechanism; you can get technical support and help in time.
-* Zero input which means you have no risk for choosing ZenTao compared with other commercial software that cost you thousands of dollars.
-* Support various deployments, either private deployment or cloud service.
+* Zero input, which means you have no risk for choosing ZenTao compared with other commercial software that cost you thousands of dollars.
+* Support various ways of deployment, either private deployment or cloud service.
 
 
 5. Features of ZenTao Project Management Software