docs(dpl): adjust dpl article to be one page (#546)

Author: P1l3T0

_config.yml

@@ -2069,7 +2069,7 @@ intro_columns:
   -
     title: "Document Processing"
     items:
-      "Document Processing": "integration-with-other-telerik-products/document-processing/overview"
+      "Document Processing": "integration-with-other-telerik-products/document-processing"
   -
     title: "Media"
     items:

integration/telerik-products/document-processing/overview.md renamed to integration/telerik-products/document-processing.md

@@ -1,17 +1,17 @@
 ---
-title: Overview
+title: Document Processing Libraries
 page_title: Overview - Document Processing Libraries
 description: Check our Web Forms article about the integration with Document Processing Libraries.
-slug: integration-with-other-telerik-products/document-processing/overview
+slug: integration-with-other-telerik-products/document-processing
 published: True
 position: 0
 ---
 
-# Overview
+# Document Processing Libraries
 
 [Telerik Document Processing Libraries](https://docs.telerik.com/devtools/document-processing/introduction) is a bundle of UI-independent cross-platform libraries that enable you to process the most commonly used flow, fixed and spreadsheet document formats for web and desktop. The Document Processing library allows you to create, import, modify and export documents in the [supported formats](https://docs.telerik.com/devtools/document-processing/introduction#supported-formats) without relying on external dependencies like Adobe Acrobat or Microsoft Office:
 
-![Telerik Document Processing Libraries](../images/Telerik_Document_Processing_Libraries.png "Telerik Document Processing Libraries") 
+![Telerik Document Processing Libraries](./images/Telerik_Document_Processing_Libraries.png "Telerik Document Processing Libraries") 
 
 |Library|Description|
 |----|----|