Linux kernel
  ============
  
  There are several guides for kernel developers and users. These guides can
  be rendered in a number of formats, like HTML and PDF. Please read
  Documentation/admin-guide/README.rst first.
  
  In order to build the documentation, use ``make htmldocs`` or
  ``make pdfdocs``.  The formatted documentation can also be read online at:
  
      https://www.kernel.org/doc/html/latest/
  
  There are various text files in the Documentation/ subdirectory,
  several of them using the Restructured Text markup notation.
  
  Please read the Documentation/process/changes.rst file, as it contains the
  requirements for building and running the kernel, and information about
  the problems which may result by upgrading your kernel.