fix: correct typo in README for PostgreSQL version

Author: umbertogriffo

README.md

@@ -43,7 +43,7 @@ Repo Features:
 
 * Python 3.10+
 * uv 0.8.17+
-* PoatgreSQL 18.1+ (if you want to use PostgreSQL as database)
+* PostgreSQL 18.1+ (if you want to use PostgreSQL as database)
 
 ### Install uv