readme: How to use:
  
  ```
  from collections import deque
  from  bs4 import BeautifulSoup
  import requests
  from transformers import AutoModelForSeq2SeqLM, AutoTokenizer, T5Tokenizer
  import torch
  
  model_name = 'artemnech/dialoT5-base'
  model = AutoModelForSeq2SeqLM.from_pretrained(model_name)
  tokenizer = AutoTokenizer.from_pretrained(model_name)
  
  def generate(text, **kwargs):
      model.eval()
      inputs = tokenizer(text, return_tensors='pt').to(model.device)
      with torch.no_grad():
          hypotheses = model.generate(**inputs,  **kwargs)
      return tokenizer.decode(hypotheses[0], skip_special_tokens=True)
  
  def dialog(context):
    
      keyword = generate('keyword: ' + ' '.join(context), num_beams=2,)
      knowlege = ''
      if keyword != 'no_keywords':
          resp = requests.get(f"https://en.wikipedia.org/wiki/{keyword}")
          root = BeautifulSoup(resp.content, "html.parser")
          knowlege ="knowlege: " + " ".join([_.text.strip() for _ in root.find("div", class_="mw-body-content mw-content-ltr").find_all("p", limit=2)])
  
      answ = generate(f'dialog: ' + knowlege + ' '.join(context), num_beams=3,
                      do_sample=True, temperature=1.1, encoder_no_repeat_ngram_size=5, 
                      no_repeat_ngram_size=5, 
                      max_new_tokens  = 30)
      return answ
  
  context =deque([], maxlen=4)
  while True:
      text = input()
      text = 'user1>>: ' + text
      context.append(text)
      answ = dialog(context)
      context.append('user2>>: ' + answ)
  
      print('bot: ', answ)
      
  ```