Add description for transformer topic

Author: Tariolle

topics/transformer/index.md

@@ -0,0 +1,7 @@
+---
+display_name: Transformer
+short_description: A transformer is a deep learning architecture based on self-attention mechanisms, designed to process sequential data in parallel.
+topic: transformer
+wikipedia_url: https://en.wikipedia.org/wiki/Transformer_(deep_learning_architecture)
+---
+A transformer is a deep learning architecture based on self-attention mechanisms, designed to process sequential data in parallel. Transformers are the foundation of modern large language models and are widely used in natural language processing, computer vision, and generative AI.