Merge pull request #8776 from metabase/release-0.31.0

docs/administration-guide/03-metadata-editing.md

docs/administration-guide/08-configuration-settings.md

docs/administration-guide/17-data-sandboxes.md

docs/administration-guide/19-formatting-settings.md

docs/administration-guide/start.md

docs/users-guide/05-visualizing-results.md

docs/users-guide/08-dashboard-filters.md

docs/users-guide/13-sql-parameters.md

docs/users-guide/14-x-rays.md

...ers-guide/images/dashboard-filters/06-edit-and-remove.png

...-guide/images/visualizations/chart-formatting-options.png

docs/users-guide/images/visualizations/chart-formatting.png

...-guide/images/visualizations/column-header-formatting.png

.../users-guide/images/visualizations/combo-chart-data-1.png

.../users-guide/images/visualizations/combo-chart-data-2.png

...sers-guide/images/visualizations/combo-chart-settings.png

docs/users-guide/images/visualizations/combo-chart.png

docs/users-guide/images/visualizations/gauge-settings.png

docs/users-guide/images/visualizations/gauge.png

docs/users-guide/images/visualizations/smart-number.png