fix to import statement PGSearchTool.md (#548)

fix to the import statement in PGSearchTool documentation

docs/tools/PGSearchTool.md

@@ -19,7 +19,7 @@ pip install 'crewai[tools]'
 Below is a proposed example showcasing how to use the PGSearchTool for conducting a semantic search on a table within a PostgreSQL database:
 
 ```python
-rom crewai_tools import PGSearchTool
+from crewai_tools import PGSearchTool
 
 # Initialize the tool with the database URI and the target table name
 tool = PGSearchTool(db_uri='postgresql://user:password@localhost:5432/mydatabase', table_name='employees')
@@ -57,4 +57,4 @@ tool = PGSearchTool(
         ),
     )
 )
-```
+```