Update README.md

Author: brendaweles

python-llamaindex/README.md

@@ -1,3 +1,3 @@
-# Python LlamaIndex: Step by Step RAG With Examples
+# LlamaIndex in Python: A RAG Guide With Examples
 
-This folder provides the code examples for the Real Python tutorial [Python LlamaIndex: Step by Step RAG With Examples](https://realpython.com/python-llamaindex-examples/).
+This folder provides the code examples for the Real Python tutorial [LlamaIndex in Python: A RAG Guide With Examples](https://realpython.com/python-llamaindex-examples/).