Create README.md (#7349)

Model card for akhooli/personachat-arabic

model_cards/akhooli/personachat-arabic/README.md

+---
+tags:
+- conversational
+language:
+- ar
+license: mit
+---
+## personachat-arabic (conversational AI)
+This is personachat-arabic, using a subset from the persona-chat validation dataset, machine translated to Arabic (from English) 
+and fine-tuned from [akhooli/gpt2-small-arabic](https://huggingface.co/akhooli/gpt2-small-arabic) which is a limited text generation model.  
+Usage: see the last section of this [example notebook](https://colab.research.google.com/drive/1I6RFOWMaTpPBX7saJYjnSTddW0TD6H1t?usp=sharing) 
+Note: model has limited training set which was machine translated (do not use for production).