docs: small fixes across the documentation (#2692)

* docs: various bug fixes

* docs: add the import in other storage plugins

* docs: fixed the placement of manual taxes doc

www/docs/sidebars.js

@@ -209,6 +209,11 @@ module.exports = {
               id: "advanced/storefront/how-to-implement-checkout-flow",
               label: "Implement Checkout"
             },
+            {
+              type: "doc",
+              id: "advanced/backend/taxes/manual-calculation",
+              label: "Calculate Taxes Manually"
+            },
             {
               type: "doc",
               id: "advanced/storefront/use-sales-channels",
@@ -230,11 +235,6 @@ module.exports = {
               id: "advanced/admin/import-prices",
               label: "Import Prices"
             },
-            {
-              type: "doc",
-              id: "advanced/backend/taxes/manual-calculation",
-              label: "Calculate Taxes Manually"
-            },
             {
               type: "doc",
               id: "advanced/backend/price-lists/use-api",