Update README.md

README.md

@@ -5,6 +5,7 @@ Learn OpenCV  : C++ and Python Examples. You can find the details at [LearnOpenC
 
 | Blog Post        | |
 | ------------- |:-------------|
+|[Heatmap for Logo Detection using OpenCV (Python)](https://www.learnopencv.com/heatmap-for-logo-detection-using-opencv-python/) | [Code](https://github.com/spmallick/learnopencv/tree/master/heatmap)|
 |[Deep Learning based Object Detection using YOLOv3 with OpenCV ( Python / C++ )](https://www.learnopencv.com/deep-learning-based-object-detection-using-yolov3-with-opencv-python-c/) | [Code](https://github.com/spmallick/learnopencv/tree/master/ObjectDetection-YOLO)|
 |[Convex Hull using OpenCV in Python and C++](https://www.learnopencv.com/convex-hull-using-opencv-in-python-and-c/) | [Code](https://github.com/spmallick/learnopencv/tree/master/ConvexHull)|
 |[MultiTracker : Multiple Object Tracking using OpenCV (C++/Python)](https://www.learnopencv.com/multitracker-multiple-object-tracking-using-opencv-c-python/) | [Code](https://github.com/spmallick/learnopencv/tree/master/MultiObjectTracker) |