Update README.md

Author: javadiahad

accounts/README.md

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 # microservice-test
 
 Product1 includes sample tests for different layers of an instance spring boot microservice.
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+It uses java an in-memeory database and spring boot starts the database at the startup time too.The database is automatically populated at startup by some sample data. 
 
 
 Tech stack:
 
 Java 8
 Spring Boot 2.5.x
 Pact 4.x
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