[MOV] Misc: Move Portal doc to Misc

closes odoo/documentation#3634

X-original-commit: d690314ba5
Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>
Signed-off-by: Timothy Kukulka (tiku) <tiku@odoo.com>

content/applications/general/users.rst

@@ -17,3 +17,4 @@ can be applied. Users and access rights can be added and changed at any point.
    users/language
    users/access_rights
    users/companies
+   users/portal

content/applications/sales/sales.rst

@@ -21,4 +21,3 @@ deliver and invoice what has been sold.
    sales/products_prices
    sales/amazon_connector
    sales/ebay_connector
-   sales/advanced

content/applications/sales/sales/advanced.rst

@@ -1,10 +0,0 @@
-:nosearch:
-
-===============
-Advanced Topics
-===============
-
-.. toctree::
-   :titlesonly:
-
-   advanced/portal