cd: add README to subpackages

extensions/ee/chromadb/README.md

@@ -0,0 +1,11 @@
+# ChromaDB Extension for PandasAI
+
+This extension integrates ChromaDB with PandasAI, providing vector storage capabilities for enhanced data analysis and machine learning tasks.
+
+## Installation
+
+You can install this extension using poetry:
+
+```bash
+poetry add pandasai-chromadb
+```