old_contents: from django.shortcuts import render
  
  
  def get_index(request):
      return render(request, 'main/index.html')
  
new_contents: from django.shortcuts import render
  
  
  def get_index(request):
      return render(request, 'main/index.html')
  
  def get_about(request):
      return render(request, 'main/about.html', {
          'page_title': 'Σχετικά',
      })
  
subject: add get about view method