Update README.md

Author: alinzh

Diff for: README.md

@@ -1,5 +1,7 @@
 # database_visualization
 Generate Entity-Relationship Diagrams from PostgreSQL by PlantUML, DBML-renderer, ERAlchemy, Graphviz.
+![image](https://github.com/alinzh/database_visualization/assets/124587537/9a52bd73-1fa0-4905-876f-20b321296a75)
+
 ### Requirements
 - PostgreSQL*
 - graphviz==2.49.0
@@ -44,10 +46,11 @@ python main.py --host HOST --port PORT --user USER --password PASSWORD \
 - 'dbml-r'
 - 'dot-r'
 
+You can not specify engine, then you will get diagrams generated by all available methods.
+
 **Available direction:**
 
 If you are not satisfied with the location of the blocks on the diagram, change their location by adding the argument *DIRECTION* = '2'.
-
 If you need to save image in specific folder, add an argument *PATH* with a path.