text: Title: [BUG] igraph layouts docs examples misformatted
  Body: **Describe the bug**
  See examples screenshot below
  
  ![Screenshot from 2023-04-03 15-07-46](https://user-images.githubusercontent.com/4249447/229638092-dd8ee328-83b5-483b-8f70-1478480ee924.png)
  