[v0.3.1] revise mindspore version info (#655)

Co-authored-by: panshaowu <panshaowu@huawei.com>

Author: panshaowu

README.md

@@ -51,10 +51,10 @@ MindOCR is an open-source toolbox for OCR development and application based on [
 MindOCR is built on MindSpore AI framework, which supports CPU/GPU/NPU devices.
 MindOCR is compatible with the following framework versions. For details and installation guideline, please refer to the installation links shown below.
 
-- mindspore >= 2.2.0 [[install](https://www.mindspore.cn/install)]
+- mindspore 2.2.x [[install](https://www.mindspore.cn/install)]
 - python >= 3.7
 - openmpi 4.0.3 (for distributed training/evaluation)  [[install](https://www.open-mpi.org/software/ompi/v4.0/)]
-- mindspore lite (for offline inference) >= 2.2.0  [[install](docs/en/inference/environment.md)]
+- mindspore lite (for offline inference) 2.2.x  [[install](docs/en/inference/environment.md)]
 
 
 #### Dependency

README_CN.md

@@ -45,10 +45,10 @@ MindOCR是一个基于[MindSpore](https://www.mindspore.cn/en) 框架开发的OC
 
 MindOCR基于MindSpore AI框架（支持CPU/GPU/NPU）开发，并适配以下框架版本。安装方式请参见下方的安装链接。
 
-- mindspore >= 2.2.0 [[安装](https://www.mindspore.cn/install)]
+- mindspore 2.2.x [[安装](https://www.mindspore.cn/install)]
 - python >= 3.7
 - openmpi 4.0.3 (用于分布式训练与验证)  [[安装](https://www.open-mpi.org/software/ompi/v4.0/)]
-- mindspore lite (用于离线推理) >= 2.2.0  [[安装](docs/cn/inference/environment.md)]
+- mindspore lite (用于离线推理) 2.2.x  [[安装](docs/cn/inference/environment.md)]
 
 #### 包依赖
 

tools/infer/text/README.md

@@ -10,7 +10,7 @@ Thus, online inference is more suitable for demonstration and to visually evalua
 
 | Environment | Version |
 |-------------|---------|
-| MindSpore   | >=1.9   |
+| MindSpore   | 2.2.x   |
 | Python      | >=3.7   |
 
 Supported platforms: Linux, MacOS, Windows (Not tested)
@@ -27,7 +27,7 @@ Then install the dependency by
 pip install -r requirements.txt
 ```
 
-For MindSpore(>=1.9) installation, please follow the official [installation instructions](https://www.mindspore.cn/install) for the best fit of your machine.
+For MindSpore 2.2.x installation, please follow the official [installation instructions](https://www.mindspore.cn/install) for the best fit of your machine.
 
 
 ## Text Detection

tools/infer/text/parallel/README.md

@@ -21,7 +21,7 @@ This doc introduces how to run the detection and recognition prediction pipeline
 
 | Environment | Version |
 |-------------|---------|
-| MindSpore   | >=1.9   |
+| MindSpore   | 2.2.x   |
 | Python      | >=3.7   |
 
 

tools/infer/text/parallel/README_CN.md

@@ -20,7 +20,7 @@
 
 | 环境        | 版本    |
 |-----------|-------|
-| MindSpore | >=1.9 |
+| MindSpore | 2.2.x |
 | Python    | >=3.7 |