[GRASS-web] [OSGeo/grass-website] e5f2ff: fix number of core modules

[Veronica Andreo]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-website
  Commit: e5f2ffa376d2f2593593513accd46dd92ed70a4e
      https://github.com/OSGeo/grass-website/commit/e5f2ffa376d2f2593593513accd46dd92ed70a4e
  Author: Veronica Andreo <veroandreo at gmail.com>
  Date:   2020-04-11 (Sat, 11 Apr 2020)

  Changed paths:
    M content/learn/overview.md

  Log Message:
  -----------
  fix number of core modules

We are currently in 529 core modules, not 350