[GRASS-git] [OSGeo/grass] 902aca: r.grow.distance manual: set color table in example

[Markus Neteler]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass
  Commit: 902acaa18f8a4df24c64b51a88001d4116776431
      https://github.com/OSGeo/grass/commit/902acaa18f8a4df24c64b51a88001d4116776431
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2019-12-09 (Mon, 09 Dec 2019)

  Changed paths:
    M raster/r.grow.distance/r.grow.distance.html

  Log Message:
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  r.grow.distance manual: set color table in example

After change to the `viridis` color table as the default, here the `rainbow` color table must be set explicitly in order to reproduce the example.