Desciption update suggestion for ChatGLM2-6B Int4 Env Install Guide

[fiorezhang]

For people who first time touch this area, please ensure they could seamlessly install the environment exactly follow the install guide. So I have some suggestions in below for reference:

1. Conda setup. Please create a separate page for recommended conda env setup steps. Ex: Anaconda download path, version request if any, special steps during install, how to launch the command line. Then each models install guide can link to this same conda setup page to help people smoothly build the environment.
2. Please add a simple reference code to guide people to install bigdl-llm from local source, important to Chinese users. And please ensure that source's library is well synced.
3. Please state the code relies on the original ChatGLM2-6B model, don't need to download another 'converted model' because the compiling is in runtime. Also please link to some page to guide people to download the original model file.
4. Please add a snapshot under '2.1 client' for the generate.py runtime. People can learn the example of parameters, and the expected output as well.
   We gathered the feedback from people who first time setup this environment then meet problems, for your reference. Please consider updating the guide for easier setup. Thanks very much!

[jason-dai]

@shane-huang @plusbang

[hkvision]

Hi Fiore! Thank you for your comments, we will try to address them:

1. We will add more detailed conda installations.
2. Do you mean you want guide for users to build bigdl-llm from source by themselves? Why this is for Chinese users? Actually it may not be that convenient for users to build the native libs by themselves, especially on Windows. @fiorezhang
3. Sure, we will clarify this in the introduction section at the very beginning of the README.
4. Actually we have arguments description at the beginning of section2, and results in section 2.3. We will add a sentence to tell users they can find the results in section 2.3, do you think it is OK?

[hkvision]

@jason-dai For the conda installation guide, where do you think is the good place to put for all READMEs/docs? In Orca website doc there is already one: https://bigdl.readthedocs.io/en/latest/doc/Orca/Overview/install.html#install-anaconda

[plusbang]

Hi @fiorezhang , we have added more details in ChatGLM guide to better help beginners getting started:

• Provide conda installation guide link.
• Add instructions of how to download original models and clarify no extra conversion is needed.
• Add a sentence to tell users they can find the results in section 2.3.

Do you have other suggestions? And we will update these changes to other guides.

[hkvision]

Feedback: Change the sample output to a screenshot in the command line so that users can know what is the exact run arguments and the output.

[hkvision]

Hi @fiorezhang
The latest REAMDE FYI: https://github.com/intel-analytics/BigDL/blob/main/python/llm/example/transformers/transformers_int4/chatglm/README.md