Update README.md

Signed-off-by: Fabiana 🚀  Campanari <113218619+FabianaCampanari@users.noreply.github.com>

Author: FabianaCampanari

README.md

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 The conceptual model provides a high-level overview of the main entities and their relationships in the Video Wall project.
 
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 The logical model details the tables, columns, and relationships as they will be implemented in MySQL.
 
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 The physical model specifies how the logical data model will be implemented in the chosen database management system (DBMS), such as MySQL. It translates entities and relationships from the logical model into actual database tables, columns, and constraints, including technical details needed for deployment and performance optimization.
 
-Key features of the physical model include:
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+### [Key features of the physical model include]():
 
 - **Table Structures**: Each entity from the logical model becomes a table, with attributes mapped to columns.  
 - **Data Types**: Every column is assigned a specific data type (e.g., INT, VARCHAR, DATE) according to the DBMS requirements[1][3][4].  
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 ## [5.]() Database Tables (Markdown)
 
 ### [Screen]()