Review fixes

Author: p7nov

doc/platform/app/app_roles.rst

@@ -116,7 +116,6 @@ Validating a role configuration
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 To validate a role configuration, you need to define the :ref:`validate([cfg]) <roles_api_reference_validate>` function.
-The ``cfg`` argument provides access to the :ref:`role's configuration <roles_create_custom_role_config>` and check its validity.
 
 In the example below, the ``validate()`` function of the role configuration schema
 is used to validate the ``greeting`` value:

doc/reference/reference_lua/config/utils_schema.rst

@@ -98,7 +98,7 @@ Schema nodes
 Schema nodes describe the hierarchy of options within a schema. There are two types of schema nodes:
 
 -   *Scalar* nodes hold a single value of a supported primitive type. For example,
-    a string configuration option of a role is a scalar node its schema.
+    a string configuration option of a role is a scalar node in its schema.
 -   *Composite* nodes include multiple values in different forms: *records*, *arrays*, or *maps*.
 
 A node can have *annotations* -- named attributes that enable customization of
@@ -564,7 +564,7 @@ API Reference
             -   Merge two configurations
 
         *   -   :ref:`schema_object:pairs() <config-schema_object-pairs>`
-            -   Traverse a configuration
+            -   Walk over a configuration
 
         *   -   :ref:`schema_object:set() <config-schema_object-set>`
             -   Set a configuration value
@@ -940,6 +940,7 @@ schema_object
 
         :param any data: configuration data
         :param string/table path: path to the target node as:
+
                                   -   a string in the dot notation
                                   -   an array-like table
 
@@ -1062,6 +1063,7 @@ schema_object
 
         :param any data: configuration data
         :param string/table path: path to the target node as:
+
                                   -   a string in the dot notation
                                   -   an array-like table
         :param any value: new value