readme: Explain the project purpose and implementation

Author: NickVolynkin

.github/meta.yml

@@ -1,4 +1,4 @@
 # GitHub Repository metadata
-url: vcl-reports-export-pdf-report-command-line
+url: vcl-reports-headless-export
 description: Generate DevExpress VCL Reports in headless (non-GUI) applications.
 tags: [vcl, layout, reports, command-line, pdf]

README.md

@@ -4,10 +4,51 @@
 [![](https://img.shields.io/badge/💬_Leave_Feedback-feecdd?style=flat-square)](#does-this-example-address-your-development-requirementsobjectives)
 <!-- default badges end -->
 
+# DevExpress VCL Reports—Generate a PDF Report Using a non-GUI application
+
+This command line application uses the DevExpress VCL Reports components to generate a PDF report.
+The application obtains data from a database using a SQL query that includes report layout parameters.
+
+The example includes projects for both [Delphi](./Delphi) and [C++Builder](./CPB).
+
+> ![Example of a PDF report produced by the command line application, showing an alphabetical list of products](./images/report.png)
+
+## Prerequisites
+
+See: [DevExpress Reports Prerequisites](https://docs.devexpress.com/VCL/405768/ExpressCrossPlatformLibrary/general-recommendations/vcl-web-view-2-based-app-deployment#vcl-reportsdashboards-prerequisites)
+
+
+## Implementation Details
+
+By following the steps outlined in this example, you'll create a standalone command line application using the
+[DevExpress VCL ](https://docs.devexpress.com/VCL/405469/ExpressReports/vcl-reports).
+
+### Prepare a Template Report Layout
+
+An application needs a template report layout, created in the [Report Designer](https://docs.devexpress.com/VCL/405469/ExpressReports/vcl-reports).
+You can [store a report layout in a `.repx` file](https://github.com/DevExpress-Examples/vcl-reports-store-layout-template-file)
+or [in a database](https://github.com/DevExpress-Examples/vcl-reports-store-layout-template-database).
+
+This example loads a report layout from the [`Layout.repx`](./Layout.repx) file.
+
+### 
+
+## Documentation and Examples
+
+-   [Documentation: DevExpress VCL Reports](https://docs.devexpress.com/VCL/405469/ExpressReports/vcl-reports)
+-   [Example: Store Report Layouts within Text Files](https://github.com/DevExpress-Examples/vcl-reports-store-layout-template-file)
+-   [Example: Store Report Layouts in a Database](https://github.com/DevExpress-Examples/vcl-reports-store-layout-template-database)
+
+## Files to Review
+
+-   [`PDFReportGenerator.ini`](./PDFReportGenerator.ini) defines configuration settings used to generate a report.
+    In your product, you can implement these settings as 
+-   [`Layout.repx`](./Layout.repx) contains visual report layout and database connection data.
+-   [`Delphi/PDFReportGenerator.dpr`](./Delphi/PDFReportGenerator.dpr) generates a report in headless (non-GUI) mode.
+
 
- 
 <!-- feedback -->
-## Does this example address your development requirements/objectives?
+## Does This Example Address Your Development Requirements/Objectives?
 
 [<img src="https://www.devexpress.com/support/examples/i/yes-button.svg"/>](https://www.devexpress.com/support/examples/survey.xml?utm_source=github&utm_campaign=vcl-reports-filter-export-report-pdf-in-console-app&~~~was_helpful=yes) [<img src="https://www.devexpress.com/support/examples/i/no-button.svg"/>](https://www.devexpress.com/support/examples/survey.xml?utm_source=github&utm_campaign=vcl-reports-filter-export-report-pdf-in-console-app&~~~was_helpful=no)