Fixes to documentation.

Thanks to the kind people on the Yunohost forums for pointing
out the issues.

INSTALL

@@ -17,13 +17,18 @@ On Windows, do
 Set up a group called *test* by creating a file `groups/test.json`:
 
     mkdir groups
-    vi groups/name.json
+    vi groups/test.json
     
 You may use the following definition:
 
     {
-        "op": [{"username": "admin", "password": "1234"}],
+        "users":{
-        "presenter": [{}]
+            "admin": {"password": "1234", "permissions": "op"}
+        },
+        "wildcard-user": {
+            "password": {"type": "wildcard"},
+            "permissions": "present"
+        }
     }
 
 See the README file for more details about defining groups.

README

@@ -32,7 +32,7 @@ Groups are available under `/group/groupname/`.  You may share this URL
 with others, there is no need to go through the landing page.
 
 Recordings can be accessed under `/recordings/groupname/`.  This is only
-available to the administrator of the group.
+available to the group operator.
 
 Some statistics are available under `/stats.json`, with a human-readable
 version at `/stats.html`.  This is only available to the server administrator.
@@ -146,12 +146,12 @@ A typical group definition file looks like this:
         "auto-subgroups": true
     }
 
-This defines a group with the operator (administrator) username *jch* and
+This defines a group with the operator username *jch* and password *1234*.
-password *1234*.  The `allow-recording` entry says that the operator is
+The `allow-recording` entry says that the operator is allowed to record
-allowed to record videos to disk, and the `auto-subgroups` entry says
+videos to disk, and the `auto-subgroups` entry says that subgroups will be
-that subgroups will be created automatically.  This particular group does
+created automatically.  This particular group does not allow password
-not allow password login for ordinary users, and is suitable if you use
+login for ordinary users, and is suitable if you use invitations (see
-invitations (see *Stateful Tokens* below) for ordinary users.
+*Stateful Tokens* below) for ordinary users.
 
 In order to allow password login for ordinary users, add password entries
 with the permission `present`:
@@ -339,7 +339,7 @@ a hashed password looks like this:
 ### Stateful tokens
 
 Stateful tokens allow to temporarily grant access to a user.  In order to
-generate a stateful token, the group administrator types
+generate a stateful token, the group operator types
 
     /invite user period