Add WangChanGLM 🐘 to PyThaiNLP

[wannaphong]

WangChanGLM is a multilingual, instruction-finetuned Facebook XGLM-7.5B using open-source, commercially permissible datasets (LAION OIG chip2 and infill_dbpedia, DataBricks Dolly v2, OpenAI TL;DR, and Hello-SimpleAI HC3; about 400k examples), released under CC-BY SA 4.0. The models are trained to perform a subset of instruction-following tasks we found most relevant namely: reading comprehension, brainstorming, and creative writing.

• Blog: https://medium.com/@iwishcognitivedissonance/wangchanglm-the-thai-turned-multilingual-instruction-following-model-7aa9a0f51f5f
• GitHub: https://github.com/PyThaiNLP/WangChanGLM