[GRASS-git] [OSGeo/grass] 8c6037: r.walk: add screenshot in documentation (#3025)

[Brendan Harmon]

  Branch: refs/heads/main
  Home:   https://github.com/OSGeo/grass
  Commit: 8c60377d46af6bbf62bb811342ec45c41b096af2
      https://github.com/OSGeo/grass/commit/8c60377d46af6bbf62bb811342ec45c41b096af2
  Author: Brendan Harmon <brendan.harmon at gmail.com>
  Date:   2023-06-09 (Fri, 09 Jun 2023)

  Changed paths:
    M raster/r.walk/r.walk.html
    A raster/r.walk/r_walk.png

  Log Message:
  -----------
  r.walk: add screenshot in documentation (#3025)