Hints for gtranslator in main

Warnings

• asv-description-para-markup-invalid
  org.gnome.Gtranslator.appdata.xml:193 - ul
  This description paragraph contains invalid markup. Currently, only <em/> and <code/> are permitted.
• asv-description-para-markup-invalid
  org.gnome.Gtranslator.appdata.xml:202 - ul
  This description paragraph contains invalid markup. Currently, only <em/> and <code/> are permitted.
• asv-description-para-markup-invalid
  org.gnome.Gtranslator.appdata.xml:218 - ul
  This description paragraph contains invalid markup. Currently, only <em/> and <code/> are permitted.
• asv-description-has-plaintext-url
  org.gnome.Gtranslator.appdata.xml:215 - p
  The description contains a web URL in plain text. This is not allowed, please use the <url/> tag instead to share links.
• asv-description-para-markup-invalid
  org.gnome.Gtranslator.appdata.xml:234 - ul
  This description paragraph contains invalid markup. Currently, only <em/> and <code/> are permitted.
• asv-desktop-app-launchable-missing
  org.gnome.Gtranslator.appdata.xml -
  This `desktop-application` component is missing a `desktop-id` launchable tag. This means that this application can not be launched and has no association with its desktop-entry file. It also means no icon data or category information from the desktop-entry file will be available, which will result in this application being ignored entirely.
• screenshot-download-error
  Error while downloading screenshot from 'https://gitlab.gnome.org/GNOME/gtranslator/raw/master/help/C/figures/gtranslator_interface.png': URL was not found on the server.
  This might be a temporary server issue, or the screenshot is no longer available.