docs: yml 오타 수정

src/main/resources/application-prod.yml

@@ -1,6 +1,6 @@
 spring:
   datasource:
     driver-class-name: oracle.jdbc.OracleDriver
-    url: ${datasouce.url}
+    url: ${datasource.url}
     username: ${datasource.username}
     password: ${datasource.password}