Fix image tags in about_portal directory.
Fix image tags in partials directory.
Fix image tags in runs directory.
Fix image tags in workflows directory.
Merge branch 'rh/assets' into 0.4.0-maint

* rh/assets:
  Fix image tags in workflows directory.
  Fix image tags in runs directory.
  Fix image tags in partials directory.
  Fix image tags in about_portal directory.