Update README.md

README.md

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 This advanced-level repository equips learners with the necessary skills to excel in full-stack development using Java, with a focus on fostering employability skills. learners will delve into the key technologies integral to full-stack development, primarily centered around Java and its associated tools and frameworks such as Java EE, Java Persistence, Hibernate, Maven, and Spring Core. Upon successful completion of the repository, learners will be well-prepared to pursue a career in full-stack development, armed with a comprehensive understanding of Java-based technologies and problem-solving capabilities.
 
 ## Content's 
-## Calculator _(HTML, CSS, Java)_ 
+## Calculator _(HTML, CSS, Java)_  
 ![alt text](https://github.com/AkashKobal/java-full-stack-developement/blob/main/Calculator/output.png)