[IMP] sql_export: black, isort, prettier

sql_export/readme/USAGE.md

@@ -0,0 +1,8 @@
+Dashboards \> Sql Export
+
+**Specific use with parameters**
+
+- %(company_id)s allows to set in the query the company id of the user
+- %(user_id)s allows to set in the query the user id
+- for any created property, you can use it with %(Property String)s
+  syntax