add analytics settings docs (https://github.com/woocommerce/woocommerce-admin/pull/3526)

plugins/woocommerce-admin/docs/woocommerce.com/analytics-settings.md

@@ -1 +1,25 @@
-# Analytics Settings
+# Analytics Settings
+
+WooCommerce Admin is pre-configured with default settings for WooCommerce Analytics. These settings are broken down into sections:
+
+- Excluded Statuses
+- Actionable Statuses - See [Activity Panels](activity-panels.md) for details
+- Default Date Range
+- Import Historical Data - See [Importing Historical Data](analytics-historical-data-import.md) for details
+- Reset Defaults
+
+### Excluded Statuses
+
+![Excluded statuses settings](images/settings-excluded-statuses.png)
+
+In this section, statuses that are **unchecked** are **included** in anayltics reports. **Checked** statuses are **excluded**. If your store uses custom order statuses, those statuses are included in the reports by default. They will be listed in this section under `Custom Statuses` and can be excluded via the status checkbox.
+
+### Default Date Range
+
+![Default Date Range setting](images/settings-default-date-range.png)
+
+WooCommerce Admin is pre-configured with a default date range of `Month to Date`. This is the date range that will be used when loading the WooCommerce Dashboard or Analytics page from any non-WooCommerce Admin page. Any reports that support a date range will have a Date Range Picker to allow changing the date range for the report.
+
+### Reset Defaults
+
+The `Reset Defaults` button resets the settings to default values for all of the settings above the button. It has no effect on the data imported via `Import Historical Data`.