Update deep-learning topic description

Author: Tariolle

topics/deep-learning/index.md

@@ -1,9 +1,8 @@
 ---
 aliases: deeplearning, deep-learning-tutorial, deep-learning-algorithms, deep-learning-papers
 display_name: Deep learning
-short_description: Deep Learning is an artificial neural network composed of many
-  layers.
+short_description: Deep learning is a subset of machine learning that uses multi-layered neural networks to learn hierarchical representations from data.
 topic: deep-learning
 wikipedia_url: https://en.wikipedia.org/wiki/Deep_learning
 ---
-Deep learning is an AI function and a subset of machine learning, used for processing large amounts of complex data. Deep learning can automatically create algorithms based on data patterns.
+Deep learning is a subset of machine learning that uses artificial neural networks with multiple layers to automatically learn hierarchical representations from data. It powers modern breakthroughs in computer vision, natural language processing, speech recognition, and generative AI.