Add visual object detection notebook to README (#3605)

Co-authored-by: atqy <[email protected]>

README.md

@@ -54,6 +54,7 @@ These examples provide a gentle introduction to machine learning concepts as the
 - [Population Segmentation of US Census Data using PCA and Kmeans](introduction_to_applying_machine_learning/US-census_population_segmentation_PCA_Kmeans) analyzes US census data and reduces dimensionality using PCA then clusters US counties using KMeans to identify segments of similar counties.
 - [Document Embedding using Object2Vec](introduction_to_applying_machine_learning/object2vec_document_embedding) is an example to embed a large collection of documents in a common low-dimensional space, so that the semantic distances between these documents are preserved.
 - [Traffic violations forecasting using DeepAR](introduction_to_applying_machine_learning/deepar_chicago_traffic_violations) is an example to use daily traffic violation data to predict pattern and seasonality to use Amazon DeepAR alogorithm.
+- [Visual Inspection Automation with Pre-trained Amazon SageMaker Models](introduction_to_applying_machine_learning/visual_object_detection) is an example for fine-tuning pre-trained Amazon Sagemaker models on a target dataset.
 
 ### SageMaker Automatic Model Tuning