Hints for gtranslator in main

Warnings

• 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-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: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.
• screenshot-save-error
  Unable to store screenshot for 'https://gitlab.gnome.org/GNOME/gtranslator/raw/master/help/C/figures/gtranslator_interface.png': Can not store source screenshot: Unrecognized image file format