updated readme to match the datamodel

backend/src/main/resources/application.yml

@@ -1,5 +1,5 @@
 server:
-  port: 8090
+  port: 8080
   servlet:
     context-path: /api
 
@@ -9,7 +9,7 @@ spring:
   
   # Database Configuration
   datasource:
-    url: jdbc:postgresql://dind:5432/vibing
+    url: jdbc:postgresql://localhost:5432/vibing
     username: vibing
     password: vibing
     driver-class-name: org.postgresql.Driver

local-dev/compose.yml

@@ -8,7 +8,4 @@ services:
       POSTGRES_PASSWORD: vibing
       POSTGRES_DB: vibing
     volumes:
-      - postgres_data:/var/lib/postgresql/data
-
-volumes:
-  postgres_data:
+      - postgres_data:/var/lib/postgresql/data