Pre Merge pull request !15 from mindspore-ci-bot/pull2

README.md

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+# Introduction
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   GraphEngine(GE) is a sub-module of MindSpore connecting the front end and devices which was designed by the researches and engineers within Huawei Technologies Co.,Ltd. GE is implemented via C++. It takes the graph of front end as its input and a series of graph operations are carried out to adapt the graph to a certain form which can be effectively operated on devices. GE is specifically designed for an efficient operation on Ascend Chips. GE is automatically called without any exposure to the users. GE mainly consists of two parts, i.e. GE API and GE Core. The architecture diagram of GE is illustrated as follows
 
 ![GE_schema](docs/GE_Architecture.png)