Update README.md

README.md

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-# Map-of-spots
-diploma
+# :world_map: Xmap (Map of spots)
+## :question: A little help for the developers
+### How to open swagger doc:
+http://localhost:8080/swagger-ui/index.html
+### How to get a collection for postman:
+download last veriosn from https://github.com/ShulV/Xmap/tree/main/postman and import into postman 
+### How to initialize the database (PostgreSQL):
+<ul>
+  <li>Create all tables, indexes, functions and etc, also insert main refrerences: https://github.com/ShulV/Xmap/blob/main/sql/generate_DB.sql</li>
+  <li>Insert Countries/Regions/Cities references: https://github.com/ShulV/Xmap/blob/main/sql/insert_cities_regions_countries.sql</li>
+  <li>Insert a user and some real spots: https://github.com/ShulV/Xmap/blob/main/sql/additional_insert_scripts.sql</li>
+</ul>
+### How to view the relational model of a database:
+download and open in special UML-tools: https://github.com/ShulV/Xmap/blob/main/uml/relation_model.csv