readme: ### Generate Arabic reviews sentences with model GPT-2 Medium.
  
  #### Load model
  
  ```
  from transformers import AutoTokenizer, AutoModelWithLMHead
    
  tokenizer = AutoTokenizer.from_pretrained("mofawzy/gpt-2-medium-ar")
  
  model = AutoModelWithLMHead.from_pretrained("mofawzy/gpt-2-medium-ar")
  ```
  
  
  
  ### Eval:
  ```
  ***** eval metrics *****
  epoch                     =       20.0
  eval_loss                 =     1.7798
  eval_mem_cpu_alloc_delta  =        3MB
  eval_mem_cpu_peaked_delta =        0MB
  eval_mem_gpu_alloc_delta  =        0MB
  eval_mem_gpu_peaked_delta =     7044MB
  eval_runtime              = 0:03:03.37
  eval_samples              =        527
  eval_samples_per_second   =      2.874
  perplexity                =     5.9285
  ```
  
  
  #### Notebook:
  https://colab.research.google.com/drive/1P0Raqrq0iBLNH87DyN9j0SwWg4C2HubV?usp=sharing
  