Update README.md

Author: yushulx

examples/official/README.md

@@ -26,4 +26,7 @@ https://github.com/user-attachments/assets/1d93597e-45f0-487f-a946-8f6dbcda9b07
 ## Examples
 - [camera.py](./camera.py): Detect documents from a camera video stream.
 - [file.py](./file.py): Detect documents from an image file and display the results in a window.
-- [orientation_detection.py](./orientation_detection.py): Normalize a document using Dynamsoft Capture Vision SDK, and detect the orientation of the document using Tesseract OCR.
+- [orientation_detection.py](./orientation_detection.py): Normalize a document using Dynamsoft Capture Vision SDK, and detect the orientation of the document using Tesseract OCR.
+
+## Blog
+[How to Implement Document Detection in Python Using Dynamsoft Capture Vision SDK](https://www.dynamsoft.com/codepool/python-capture-vision-document-detection.html)