Made easier to find link how upload app in store (#9927)

* Made easier to find link how upload app in store

Signed-off-by: Alexander Piskun <bigcat88@icloud.com>

* Made it a true link

Signed-off-by: Alexander Piskun <bigcat88@icloud.com>

---------

Signed-off-by: Alexander Piskun <bigcat88@icloud.com>

developer_manual/app_publishing_maintenance/index.rst

@@ -6,7 +6,8 @@ App publishing and maintenance
    :maxdepth: 2
 
    release_process
-   code_signing
+   Publishing App on the App Store <https://nextcloudappstore.readthedocs.io/en/latest/developer.html>
    publishing
+   code_signing
    release_automation
    app_upgrade_guide/index

developer_manual/app_publishing_maintenance/publishing.rst

@@ -1,27 +1,23 @@
 .. _app-store-publishing:
 
-====================
-App store publishing
-====================
+=============================
+The Nextcloud app store rules
+=============================
 
 .. sectionauthor:: Jos Poortvliet <jospoortvliet@gmail.com>
 
-The Nextcloud app store
------------------------
-The Nextcloud app store is built into Nextcloud to allow you to get your apps to users as easily and safely as possible. The app store and the process of publishing apps aims to be:
+
+The Nextcloud app store is built into Nextcloud to allow you to get your apps to users as easily and safely as possible.
+The app store and the process of publishing apps aims to be:
 
 * secure
 * transparent
 * welcoming
 * fair
 * easy to maintain
 
-Getting an app approved
------------------------
-You can find documentation on getting apps in our app store `here. <https://nextcloudappstore.readthedocs.io/en/latest/developer.html#publishing-apps-on-the-app-store>`_
-
 Losing a rating
-^^^^^^^^^^^^^^^
+---------------
 Apps can lose their rating when:
 
 * they are found to no longer satisfy the requirements