Merge branch 'main' into chore/remove-enrollment-snippet

Author: jxnl

README.md

@@ -235,20 +235,4 @@ This course emphasizes:
 
 ## License
 
-This is educational material for the "Systematically Improving RAG Applications" course.
-
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-## 📧 Free Email Course
-
-Want to learn more about RAG? Take our free email course and get the latest news and information about RAG techniques and best practices.
-
-[**Sign up for the free RAG Crash Course →**](https://fivesixseven.ck.page/rag-crash-course){ .md-button .md-button--primary }
-
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-
-## 🚀 Ready to Systematically Improve Your RAG Applications?
-
-**Join thousands of developers who are building better AI applications with our proven methodology.**
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-_Learn evaluation strategies, user experience design, and architectural patterns that actually work in production._
+This is educational material for the "Systematically Improving RAG Applications" course.