DOC-5126 slight clarification and spelling fixes

Author: andy-stark-redis

content/integrate/redis-data-integration/data-pipelines/data-denormalization.md

@@ -64,7 +64,9 @@ The job must include the following attributes in the `nest` block:
 - `parent`: This specifies the RDI data stream for the parent entities. Typically, you only
   need to supply the parent `table` name, unless you are nesting children under a parent that comes from
   a different source database. If you do this then you must also specify `server_name` and
-  `schema` attributes.
+  `schema` attributes. Note that this attribute refers to a Redis *key* that will be added to the target
+  database, not to a table you can access from the pipeline. See [Using nesting](#using-nesting) below
+  for the format of the key that is generated.
 - `nesting_key`: The field of the child entity that stores the unique ID (primary key) of the child entity.
 - `parent_key`: The field in the parent entity that stores the unique ID (foreign key) of the parent entity.
 - `child_key`: The field in the child entity that stores the unique ID (foreign key) of the parent entity.
@@ -75,6 +77,8 @@ The job must include the following attributes in the `nest` block:
 - `structure`: (Optional) The type of JSON nesting structure for the child entities. Currently, only a JSON map
   is supported so if you supply this attribute then the value must be `map`.
 
+## Using nesting
+
 There are several important things to note when you use nesting:
 
 - When you specify `nest` in the job, you must also set the `data_type` attribute to `json` and