Update README with example image for PDF generation

Added example image to README for PDF generation.

Author: HackoDev1530

Client-Side Components/UI Actions/Generate a PDF/README.md

@@ -1,3 +1,7 @@
 Generating a PDF using PDFGenerationAPI
 Calling an OOTB convertToPDFWithHeaderFooter() method to generate a PDF with your header and footer.
 PDFGenerationAPI – convertToPDFWithHeaderFooter(String html, String targetTable, String targetTableSysId, String pdfName, Object headerFooterInfo, String fontFamilySysId, Object documentConfiguration)
+
+Example:
+<img width="704" height="496" alt="image" src="https://github.com/user-attachments/assets/9d086ee3-db76-482d-ab11-4b0540a5e2fb" />
+