Update README.md

Author: DataWithBaraa

README.md

@@ -85,11 +85,11 @@ data-warehouse-project/
 ├── datasets/                           # Raw datasets used for the project (ERP and CRM data)
 │
 ├── docs/                               # Project documentation and architecture details
-│   ├── architecture.drawio             # Editable Draw.io file of the project's architecture
+│   ├── etl.drawio                      # Draw.io file shows all different techniquies and methods of ETL
+│   ├── data_architecture.drawio        # Draw.io file shows the project's architecture
 │   ├── data_catalog.md                 # Catalog of datasets, including field descriptions and metadata
-│   ├── data_flow.drawio                # Editable Draw.io file for the data flow diagram
-│   ├── data_models.drawio              # Editable Draw.io file for data models (star schema)
-│   ├── business_rules.md               # Business rules applied during ETL and analysis
+│   ├── data_flow.drawio                # Draw.io file for the data flow diagram
+│   ├── data_models.drawio              # Draw.io file for data models (star schema)
 │   ├── naming-conventions.md           # Consistent naming guidelines for tables, columns, and files
 │
 ├── scripts/                            # SQL scripts for ETL and transformations