Add dependency and modify instructions for env check tool (#2746)

Signed-off-by: Wang, Kai Lawrence <kai.lawrence.wang@intel.com>

README.md

@@ -78,9 +78,18 @@ pip install --upgrade intel-extension-for-tensorflow[xpu]
 
 Environment check instructions for XPU:
 
+* Option1:
 ```bash
+pip install wget
 export path_to_site_packages=`python -c "import site; print(site.getsitepackages()[0])"`
-bash ${path_to_site_packages}/intel_extension_for_tensorflow/tools/env_check.sh
+python ${path_to_site_packages}/intel_extension_for_tensorflow/tools/python/env_check.py
+```
+
+* Option2:
+```bash
+pip install wget
+wget https://raw.githubusercontent.com/intel/intel-extension-for-tensorflow/main/tools/python/env_check.py
+python env_check.py
 ```
 
 Refer to [XPU installation](docs/install/install_for_xpu.md) for details.
@@ -104,9 +113,18 @@ pip install --upgrade intel-extension-for-tensorflow-weekly[xpu] -f https://deve
 
 Environment check instructions for GPU weekly:
 
+* Option1:
 ```bash
+pip install wget
 export path_to_site_packages=`python -c "import site; print(site.getsitepackages()[0])"`
-bash ${path_to_site_packages}/intel_extension_for_tensorflow/tools/env_check.sh
+python ${path_to_site_packages}/intel_extension_for_tensorflow/tools/python/env_check.py
+```
+
+* Option2:
+```bash
+pip install wget
+wget https://raw.githubusercontent.com/intel/intel-extension-for-tensorflow/main/tools/python/env_check.py
+python env_check.py
 ```
 
 #### Install for CPU weekly

docs/install/experimental/install_for_arc_gpu.md

@@ -192,9 +192,18 @@ To install an XPU version in virtual environment, which depends on Intel GPU dri
 ```
 
 Check the environment for XPU:
+* Option1:
 ```bash
+(tf)$ pip install wget
 (tf)$ export path_to_site_packages=`python -c "import site; print(site.getsitepackages()[0])"`
-(tf)$ bash ${path_to_site_packages}/intel_extension_for_tensorflow/tools/env_check.sh
+(tf)$ python ${path_to_site_packages}/intel_extension_for_tensorflow/tools/python/env_check.py
+```
+
+* Option2:
+```bash
+(tf)$ pip install wget
+(tf)$ wget https://raw.githubusercontent.com/intel/intel-extension-for-tensorflow/main/tools/python/env_check.py
+(tf)$ python env_check.py
 ```
 
 ### 4. Verify the Installation 

docs/install/experimental/install_for_gpu_conda.md

@@ -49,10 +49,20 @@ source /path/to/intel/oneapi/mkl/latest/env/vars.sh
 ```
 
 Check the environment for GPU:
+* Option1:
 ```bash
-export path_to_site_packages=`python -c "import site; print(site.getsitepackages()[0])"`
-bash ${path_to_site_packages}/intel_extension_for_tensorflow/tools/env_check.sh
+(tf)$ pip install wget
+(tf)$ export path_to_site_packages=`python -c "import site; print(site.getsitepackages()[0])"`
+(tf)$ python ${path_to_site_packages}/intel_extension_for_tensorflow/tools/python/env_check.py
 ```
+
+* Option2:
+```bash
+(tf)$ pip install wget
+(tf)$ wget https://raw.githubusercontent.com/intel/intel-extension-for-tensorflow/main/tools/python/env_check.py
+(tf)$ python env_check.py
+```
+
 Verify install:
 ```
 python3 -c "import intel_extension_for_tensorflow as itex; print(itex.version.GIT_VERSION)"

docs/install/install_for_xpu.md

@@ -136,9 +136,18 @@ You can follow below the instruction to check environment for XPU.
 (tf)$ python -c "import intel_extension_for_tensorflow as itex; print(itex.tools.python.env_check.check())"
 ```
 If you have issue to load itex, You can follow below the instruction to check environment for XPU.
+* Option1:
 ```bash
+(tf)$ pip install wget
 (tf)$ export path_to_site_packages=`python -c "import site; print(site.getsitepackages()[0])"`
-(tf)$ python  ${path_to_site_packages}/intel_extension_for_tensorflow/tools/python/env_check.py
+(tf)$ python ${path_to_site_packages}/intel_extension_for_tensorflow/tools/python/env_check.py
+```
+
+* Option2:
+```bash
+(tf)$ pip install wget
+(tf)$ wget https://raw.githubusercontent.com/intel/intel-extension-for-tensorflow/main/tools/python/env_check.py
+(tf)$ python env_check.py
 ```
 
 ##### Verify the Installation