Update README.MD

Author: doganenes

README.MD

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 # HR Management System 
 
-`.NET Core` `Entity Framework` `SQL Server` `Fluent Validation` `Identity` `Unit of Work` `N-Layer` `Bootstrap`
+`.NET Core` `Entity Framework` `SQL Server` `Fluent Validation` `Identity` `Unit of Work` `AutoMapper` `N-Layer` `Bootstrap`
 
 
 This is a human resources management system. The system includes a company's self-promotion page and job postings.