update readme en

README.md

@@ -1,25 +1,38 @@
 # MindArmour
 
-- [What is MindArmour](#what-is-mindarmour)
-- [Setting up](#setting-up-mindarmour)
-- [Docs](#docs)
-- [Community](#community)
-- [Contributing](#contributing)
-- [Release Notes](#release-notes)
-- [License](#license)
+<!-- TOC -->
+
+- [MindArmour](#mindarmour)
+    - [What is MindArmour](#what-is-mindarmour)
+        - [Adversarial Robustness Module](#adversarial-robustness-module)
+        - [Fuzz Testing Module](#fuzz-testing-module)
+        - [Privacy Protection and Evaluation Module](#privacy-protection-and-evaluation-module)
+            - [Differential Privacy Training Module](#differential-privacy-training-module)
+            - [Privacy Leakage Evaluation Module](#privacy-leakage-evaluation-module)
+    - [Starting](#starting)
+        - [System Environment Information Confirmation](#system-environment-information-confirmation)
+        - [Installation](#installation)
+            - [Installation by Source Code](#installation-by-source-code)
+            - [Installation by pip](#installation-by-pip)
+        - [Installation Verification](#installation-verification)
+    - [Docs](#docs)
+    - [Community](#community)
+    - [Contributing](#contributing)
+    - [Release Notes](#release-notes)
+    - [License](#license)
+
+<!-- /TOC -->
 
 [查看中文](./README_CN.md)
 
 ## What is MindArmour
 
-MindArmour focus on security and privacy of artificial intelligence. MindArmour can be used as a tool box for MindSpore users to enhance model security and trustworthiness and protect privacy data.
-MindArmour contains three module: Adversarial Robustness Module, Fuzz Testing Module, Privacy Protection and Evaluation Module.
+MindArmour focus on security and privacy of artificial intelligence. MindArmour can be used as a tool box for MindSpore users to enhance model security and trustworthiness and protect privacy data. MindArmour contains three module: Adversarial Robustness Module, Fuzz Testing Module, Privacy Protection and Evaluation Module.
 
 ### Adversarial Robustness Module
 
-Adversarial robustness module is designed for evaluating the robustness of the model against adversarial examples, 
-and provides model enhancement methods to enhance the model's ability to resist the adversarial attack and improve the model's robustness. 
-This module includes four submodule: Adversarial Examples Generation, Adversarial Examples Detection, Model Defense and Evaluation. 
+Adversarial robustness module is designed for evaluating the robustness of the model against adversarial examples, and provides model enhancement methods to enhance the model's ability to resist the adversarial attack and improve the model's robustness.
+This module includes four submodule: Adversarial Examples Generation, Adversarial Examples Detection, Model Defense and Evaluation.
 
 The architecture is shown as follow：
 
@@ -27,7 +40,7 @@ The architecture is shown as follow：
 
 ### Fuzz Testing Module
 
-Fuzz Testing module is a security test for AI models. We introduce neuron coverage gain as a guide to fuzz testing according to the characteristics of neural networks. 
+Fuzz Testing module is a security test for AI models. We introduce neuron coverage gain as a guide to fuzz testing according to the characteristics of neural networks.
 Fuzz testing is guided to generate samples in the direction of increasing neuron coverage rate, so that the input can activate more neurons and neuron values have a wider distribution range to fully test neural networks and explore different types of model output results and wrong behaviors.
 
 The architecture is shown as follow：
@@ -40,8 +53,8 @@ Privacy Protection and Evaluation Module includes two modules: Differential Priv
 
 #### Differential Privacy Training Module
 
-Differential Privacy Training Module implements the differential privacy optimizer. Currently, SGD, Momentum and Adam are supported. They are differential privacy optimizers based on the Gaussian mechanism. 
-This mechanism supports both non-adaptive and adaptive policy. Rényi differential privacy (RDP) and Zero-Concentrated differential privacy（ZCDP） are provided to monitor differential privacy budgets. 
+Differential Privacy Training Module implements the differential privacy optimizer. Currently, `SGD`, `Momentum` and `Adam` are supported. They are differential privacy optimizers based on the Gaussian mechanism.
+This mechanism supports both non-adaptive and adaptive policy. Rényi differential privacy (RDP) and Zero-Concentrated differential privacy（ZCDP） are provided to monitor differential privacy budgets.
 
 The architecture is shown as follow：
 
@@ -55,39 +68,45 @@ The architecture is shown as follow：
 
 ![privacy_leakage](docs/privacy_leakage_en.png)
 
+## Starting
 
-## Setting up MindArmour
+### System Environment Information Confirmation
 
-### Dependencies
-
-This library uses MindSpore to accelerate graph computations performed by many machine learning models. Therefore, installing MindSpore is a pre-requisite.  All other dependencies are included in `setup.py`.
+- The hardware platform should be Ascend, GPU or CPU.
+- See our [MindSpore Installation Guide](https://www.mindspore.cn/install) to install MindSpore.  
+    The versions of MindArmour and MindSpore must be consistent.
+- All other dependencies are included in [setup.py](https://gitee.com/mindspore/mindarmour/blob/master/setup.py).
 
 ### Installation
 
-#### Installation for development
+#### Installation by Source Code
 
 1. Download source code from Gitee.
 
-```bash
-git clone https://gitee.com/mindspore/mindarmour.git
-```
+    ```bash
+    git clone https://gitee.com/mindspore/mindarmour.git
+    ```
+
+2. Compile and install in MindArmour directory.
 
-2. Compile and install in MindArmour directory. 
+    ```bash
+    cd mindarmour
+    python setup.py install
+    ```
+
+#### Installation by pip
 
 ```bash
-$ cd mindarmour
-$ python setup.py install
+pip install https://ms-release.obs.cn-north-4.myhuaweicloud.com/{version}/MindArmour/{arch}/mindarmour-{version}-cp37-cp37m-linux_{arch}.whl --trusted-host ms-release.obs.cn-north-4.myhuaweicloud.com -i https://mirrors.huaweicloud.com/repository/pypi/simple
 ```
 
-#### `Pip` installation
-
-1. Download whl package from [MindSpore website](https://www.mindspore.cn/versions/en), then run the following command:
+> - When the network is connected, dependency items are automatically downloaded during .whl package installation. (For details about other dependency items, see [setup.py](https://gitee.com/mindspore/mindarmour/blob/master/setup.py)). In other cases, you need to manually install dependency items.
+> - `{version}` denotes the version of MindArmour. For example, when you are downloading MindArmour 1.0.1, `{version}` should be 1.0.1.
+> - `{arch}` denotes the system architecture. For example, the Linux system you are using is x86 architecture 64-bit, `{arch}` should be `x86_64`. If the system is ARM architecture 64-bit, then it should be `aarch64`.
 
-```
-pip install mindarmour-{version}-cp37-cp37m-linux_{arch}.whl
-```
+### Installation Verification
 
-2. Successfully installed, if there is no error message such as `No module named 'mindarmour'` when execute the following command:
+Successfully installed, if there is no error message such as `No module named 'mindarmour'` when execute the following command:
 
 ```bash
 python -c 'import mindarmour'
@@ -99,7 +118,7 @@ Guidance on installation, tutorials, API, see our [User Documentation](https://g
 
 ## Community
 
-- [MindSpore Slack](https://join.slack.com/t/mindspore/shared_invite/enQtOTcwMTIxMDI3NjM0LTNkMWM2MzI5NjIyZWU5ZWQ5M2EwMTQ5MWNiYzMxOGM4OWFhZjI4M2E5OGI2YTg3ODU1ODE2Njg1MThiNWI3YmQ) - Ask questions and find answers.
+[MindSpore Slack](https://join.slack.com/t/mindspore/shared_invite/enQtOTcwMTIxMDI3NjM0LTNkMWM2MzI5NjIyZWU5ZWQ5M2EwMTQ5MWNiYzMxOGM4OWFhZjI4M2E5OGI2YTg3ODU1ODE2Njg1MThiNWI3YmQ) - Ask questions and find answers.
 
 ## Contributing