[Docs] Changes to ingest.asciidoc
[partintro]
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-You can use ingest node to pre-process documents before the actual indexing takes place.
-This pre-processing happens by an ingest node that intercepts bulk and index requests, applies the
-transformations, and then passes the documents back to the index or bulk APIs.
+Use an ingest node to pre-process documents before the actual document indexing happens.
+The ingest node intercepts bulk and index requests, it applies transformations, and it then
+passes the documents back to the index or bulk APIs.
-You can enable ingest on any node or even have dedicated ingest nodes. Ingest is enabled by default
-on all nodes. To disable ingest on a node, configure the following setting in the `elasticsearch.yml` file:
+All nodes enable ingest by default, so any node can handle ingest tasks. You can also create
+dedicated ingest nodes. To disable ingest for a node, configure the following setting in the
+elasticsearch.yml file:
[source,yaml]
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node.ingest: false
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-To pre-process documents before indexing, you <<pipeline,define a pipeline>> that specifies
-a series of <<ingest-processors,processors>>. Each processor transforms the document in some way.
-For example, you may have a pipeline that consists of one processor that removes a field from
-the document followed by another processor that renames a field. Configured pipelines are then stored
-in the <<cluster-state,cluster state>>.
+To pre-process documents before indexing, <<pipeline,define a pipeline>> that specifies a series of
+<<ingest-processors,processors>>. Each processor transforms the document in some specific way. For example, a
+pipeline might have one processor that removes a field from the document, followed by
+another processor that renames a field. The <<cluster-state,cluster state>> then stores
+the configured pipelines.
-To use a pipeline, you simply specify the `pipeline` parameter on an index or bulk request to
-tell the ingest node which pipeline to use. For example:
+To use a pipeline, simply specify the `pipeline` parameter on an index or bulk request. This
+way, the ingest node knows which pipeline to use. For example:
[source,js]
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