Added Dapper, simplified database config, and added README.md with setup steps

README.md

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+# SDG-Backend-Barracuda
+
+This is an ASP.NET Core Web API with a PostgreSQL backend, using Dapper for high-performance data access.
+
+## Prerequisites
+
+- [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0)
+- [PostgreSQL](https://www.postgresql.org/download/)
+
+## PostgreSQL Database Setup
+
+Follow these steps to set up your local PostgreSQL database:
+
+### 1. Create Database and User
+If you haven't already, create a database and a user with appropriate permissions. You can use `psql` or a tool like pgAdmin.
+
+```sql
+-- Create the database
+CREATE DATABASE "SDG-Backend";
+
+-- Create the user
+CREATE USER "SDG-Backend-Admin" WITH ENCRYPTED PASSWORD 'password';
+
+-- Grant privileges
+GRANT ALL PRIVILEGES ON DATABASE "SDG-Backend" TO "SDG-Backend-Admin";
+```
+
+## Development
+
+### Installing Dependencies
+The project uses `Npgsql` and `Dapper`. These can be installed via:
+
+```bash
+dotnet add package Npgsql
+dotnet add package Dapper
+```
+
+### Running the Application
+```bash
+dotnet run --project SDG-Backend-Barracuda
+```