feat(docs): Add compliance and inventory docs (#1534)

docs/tutorials/quick-inventory.md

@@ -0,0 +1,17 @@
+# Quick Inventory
+
+Prowler allows you to execute a quick inventory to extract the number of resources in your provider.
+> Currently, it is only available for AWS provider.
+
+
+- You can use option `-i`/`--quick-inventory` to execute it:
+```sh
+prowler <provider> -i
+```
+> By default, it extracts resources from all the regions, you could use `-f`/`--filter-region` to specify the regions to execute the analysis.
+
+- This feature specify both the number of resources for each service and for each resource type.
+
+- Also, it creates by default a CSV and JSON to see detailed information about the resources extracted.
+
+![Quick Inventory Example](/img/quick-inventory.png)