Update README.md (#34)

Author: rogerxfeng8

README.md

@@ -1,21 +1,40 @@
 # Intel® Extension for DeepSpeed*
 Intel® Extension for DeepSpeed* is an extension that brings Intel GPU (XPU) support to DeepSpeed(https://github.com/Microsoft/DeepSpeed). It comes with the following components:
 1. DeepSpeed Accelerator Interface implementation
-2. DeepSpeed op builders implmentation for XPU
+2. DeepSpeed op builder implmentation for XPU
 3. DeepSpeed op builder kernel code
 
 DeepSpeed would automatically use Intel® Extension for DeepSpeed* when it is installed as a python package.   After installation, models ported for DeepSpeed Accelerator Interface that run on DeepSpeed could run on Intel GPU device.
 
-Usage:
-1. Install Intel® Extension for DeepSpeed*
+## Installation
 
-`python setup.py install`
+1. Install Intel® Extension for PyTorch* following [Installation Guide](https://intel.github.io/intel-extension-for-pytorch/xpu/latest/tutorials/installation.html)
 
-2. Install DeepSpeed
+2. Install Intel® Extension for DeepSpeed*
+```python
+pip install intel-extension-for-deepspeed
+```
+ Or, you can build from source:
+```python
+source ${DPCPPROOT}/env/vars.sh
+python setup.py install
+```
+Generally, DPCPPROOT is /opt/intel/oneapi/compiler/latest for root account, ${HOME}/intel/oneapi/compiler/latest for other accounts.
 
-The DeepSpeed ops can be built just-in-time(JIT) and dynamically link at runtime, which is enabled by default.
-`python setup.py install`
+3. Install DeepSpeed
 
-Alternatives: Pre-Install DeepSpeed Ops
-To disable JIT and use pre-install DeepSpeed ops, it can be built by setting the DS_BUILD_OPS environment variables, for examples, DS_BUILD_UTILS=1.
-`CC=dpcpp CFLAGS=-fPIC CXX=dpcpp CXXFLAGS=-fPIC DS_BUILD_DEVICE=dpcpp DS_BUILD_CPU_ADAM=1 DS_BUILD_FUSED_ADAM=1 DS_BUILD_QUANTIZER=1 DS_BUILD_TRANSFORMER=1 DS_BUILD_UTILS=1 python setup.py install`
+```python
+pip install deepspeed
+```
+## Get Started
+Refer to [examples](https://github.com/intel/intel-extension-for-deepspeed/tree/main/examples#readme)
+
+
+## Security Policy
+Please report security issues or vulnerabilities to the [Intel Security Center].
+
+For more information on how Intel works to resolve security issues, see
+[Vulnerability Handling Guidelines].
+
+[Intel Security Center]:https://www.intel.com/security
+[Vulnerability Handling Guidelines]:https://www.intel.com/content/www/us/en/security-center/vulnerability-handling-guidelines.html