Huge improvements for docs (#58)

docs/content/doc/usage/rights.md

@@ -0,0 +1,29 @@
+---
+date: "2019-02-12:00:00+02:00"
+title: "Rights"
+draft: false
+type: "doc"
+menu:
+  sidebar:
+    parent: "usage"
+---
+
+# List and namespace rights for teams and users
+
+Whenever you share a list or namespace with a user or team, you can specify a `rights` parameter. 
+This parameter controls the rights that team or user is going to have (or has, if you request the current sharing status).
+
+Rights are being specified using integers.
+
+The following values are possible:
+
+| Right (int) | Meaning |
+|-------------|---------|
+| 0 (Default) | Read only. Anything which is shared with this right cannot be edited. |
+| 1 | Read and write. Namespaces or lists shared with this right can be read and written to by the team or user. |
+| 2 | Admin. Can do anything like read and write, but can additionally manage sharing options. |
+
+### Team admins
+
+When adding or querying a team, every member has an additional boolean value stating if it is admin or not.
+A team admin can also add and remove team members and also change whether a user in the team is admin or not.