Improve documentation

doc/custom_roles.md

@@ -1,10 +1,21 @@
 # Custom roles
 
 - Custom ansible roles can be stored in `roles/custom`
-- To include custom roles into, you can list them in `custom_roles`.
+- To include custom roles, you can list them in `custom_roles`.
+
+## Configuration / Variables
+
+  * **custom_roles**
+    List of roles which will be applied
+    Type: *List of Strings*
+    Default: []
+
 
 ## Example
 
+All hosts (e.g. 10.0.2.14) will get `role_a` and `role_c`,
+but hosts in group laptop (e.g. 10.0.32.14) will get `role_a` and `role_b`
+
 ```
 roles/custom/
 ├── role_a
@@ -38,5 +49,3 @@ laptops:
       - role_b
 ```
 
-All hosts (e.g. 10.0.2.14) will get `role_a` and `role_c`,
-but hosts in group laptop (e.g. 10.0.32.14) will get `role_a` and `role_b`

doc/localuser.md

@@ -13,6 +13,25 @@ The associated password can be determined using the variable `localuser_password
 
 Default: `Muster!`
 
+## Configuration / Variables
+
+  * **localuser**
+    Username of local guest account
+    If set to `false` no user will be created
+    Type: *String*/*Boolean*
+    Values:
+    * `false` <-- (default)
+    * "username"
+  * **localuser_password**
+    Password of local guest user
+    Default: "Muster!"
+    Type: *String*
+  * **localuser_secretsalt**
+    Salt for creation of password hash
+    Default: "4ANAxPycC3q"
+    Type: *String*
+
+
 ## Example
 
 * Create local guest user only on devices in group laptops.