Merge branch 'MA/AddReadmeFile' into 'main'

add readme file

See merge request ma03081/COM3014!43

.readme

+# Flight Booking Service Website
+
+Welcome to the repository for the flight booking service website. This project utilizes a microservices architecture, with each microservice (Client App, Booking Microservice, User Microservice, Flight Microservice, and Gateway API) housed in its respective directory.
+
+## CI/CD Pipeline
+The `.gitlab-ci.yml` file contains the CI/CD pipeline configurations to automate the delivery of the website.
+
+## Dockerization
+The services are containerized using Docker. The `docker-compose.yml` file is used to build and run the services in Docker containers.
+
+## Configuration
+The `.env` file contains configuration settings that allow you to change the ports of the services, if there be any port conflicts.
+
+## Building and Running Services
+To build the services, run the following command in the terminal:
+```bash
+docker-compose build
+```
+
+After building, you can start the services using:
+
+```bash
+docker-compose up
+```
+
+## Database Initialization
+
+The database image is pre-populated with default values for testing. Currently, the database is configured with an Airline account:
+
+- Email: skyHigh@gmail.com
+- Password: 123456789
+
+This account manages two flights:
+
+- From London Heathrow to Glasgow
+- From London Heathrow to Liverpool
+
+Both flights are scheduled for 15/7/2024.
+