[GRASS-git] [OSGeo/grass] 225a4f: SEO and manuals: add viewport and page language (#...

[Markus Neteler]

  Branch: refs/heads/releasebranch_7_8
  Home:   https://github.com/OSGeo/grass
  Commit: 225a4f8f421ef057830db294f4856caf8313e510
      https://github.com/OSGeo/grass/commit/225a4f8f421ef057830db294f4856caf8313e510
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2022-10-03 (Mon, 03 Oct 2022)

  Changed paths:
    M REQUIREMENTS.html
    M db/drivers/mysql/grass-mesql.html
    M general/g.setproj/g.setproj.html
    M lib/gis/parser_html.c
    M man/build_html.py
    M raster/r.li/r.li.html
    M tools/mkhtml.py
    M tools/module_synopsis.sh

  Log Message:
  -----------
  SEO and manuals: add viewport and page language (#2591)

This PR addresses #2589 (SEO problems on mobile devices):
- Google: addresses "Page isn't usable on mobile" - "Viewport not set"
    - https://search.google.com/search-console/mobile-usability?resource_id=http%3A%2F%2Fgrass.osgeo.org%2F&hl=en
    - see: https://support.google.com/webmasters/answer/9063469#viewport_not_configured
- Bing: addresses "The page is missing meta language information"
    - https://www.bing.com/webmasters/seoreports?siteUrl=https%3A%2F%2Fgrass.osgeo.org%2F&ruleId=39

Manual pages generated with this PR applied are validated correctly at https://validator.w3.org/