Remove automatic schema migrations from README

Removed mention of automatic schema migrations from README.

Author: codemaker1023

README.md

@@ -57,7 +57,6 @@ pip install memori
 - Vectorized memories and in-memory semantic search for more accurate context.
 - Third normal form schema including storage of semantic triples for a knowledge graph.
 - Reduced development overhead to a single line of code.
-- Automatic schema migrations.
 
 ## Example with OpenAI