Added post for lesson 30/31

Author: gperdrizet

site/_posts/2026-02-02-lesson_31_materials.md

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+---
+layout: post
+title: "Lesson 31 materials"
+date: 2026-02-02
+categories: resources
+---
+
+The materials for lesson 31: convolutional neural networks are up. Remember - we are going out of order for lessons 30 and 31. We will cover convolutional neural networks first, and then optimization (lesson 30), second.