text: Title: [DOCS]: Perplexity API Support - docs update
  Body: ### Affected documentation section
  
  _No response_
  
  ### Documentation improvement description
  
  related to PR 
  https://github.com/AIHawk-co/Auto_Jobs_Applier_AI_Agent/pull/811
  
  ### Why is this change necessary?
  
  _No response_
  
  ### Additional context
  
  _No response_