[GRASS-web] [OSGeo/grass-website] 43cfe4: Release page: structured and cleaned up (#97)

[Markus Neteler]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-website
  Commit: 43cfe48ac81cc6f1962dedf038473d8de53c20de
      https://github.com/OSGeo/grass-website/commit/43cfe48ac81cc6f1962dedf038473d8de53c20de
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2020-04-11 (Sat, 11 Apr 2020)

  Changed paths:
    M content/about/history/releases.md
    A content/news/cerl1996/back2.gif
    A content/news/cerl1996/cerlbutton.gif
    A content/news/cerl1996/crada.html
    A content/news/cerl1996/grass.html
    A content/news/cerl1996/grass.smlogo.gif
    A content/news/cerl1996/grassbutton.gif
    A content/news/cerl1996/index.html
    A content/news/cerl1996/logo.gif
    A content/news/cerl1996/transition.html

  Log Message:
  -----------
  Release page: structured and cleaned up (#97)

Addressing #95:

- 7.8.1 and 7.8.2 added
- HTML cleanup
- many broken links fixed
- structure (sections) added
- "release through internet" clarified
- historical contextual notes added
- cleaned "GRASS" vs "GRASS GIS" usage

Source: https://grass.osgeo.org/home/history/releases/

TODO: add numerous of the historic screenshots

Co-authored-by: Veronica Andreo