readme line separators added

README.md

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 Python back-end web application, powered by FastAPI. Designed to implement an e-learning platform where teachers can
 easily create courses, and students can enroll in courses based on their subscription tier.
 ![poodle_intro_img.png](poodle_intro_img.png)
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 ## Table of contents
 
 * [Technologies](#technologies-used)
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 * [Structure](#project-structure)
 * [Database](#database)
 
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 ## Technologies Used
 
 **Framework:** FastAPI
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 **Email Notification:** [Mailjet API](https://dev.mailjet.com/)
 
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 ## Installation and setup
 
 ### 1. Clone the project using HTTPS
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 Available when you run the server (step 3).
 
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 ## Docker Setup: [Link](https://github.com/delesray/poodle/tree/docker-production?tab=readme-ov-file)
 
 ### Setup available at the docker-prod branch documentation
 
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 ## Testing
 
 ### To run the tests, navigate to `src/app` and execute the following command
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 python -m pytest tests
 ```
 
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 ## Features
 
 - **Public endpoints** - accessible without authentication
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     * Login - available through the *Authorize* button on Swagger
     * Get all courses - displays basic information about available courses
 
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 - **Authentication Endpoints** (marked with a lock on Swagger) - require login with username and password
 
     - **Features, related to students:**
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         * Subscribe to course
         * Unsubscribe from course
         * Rate course
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     - **Features, related to teachers:**
         * View account
         * Update account
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         * Hide course
         * Make student account premium
         * Remove student from course
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 ## Project Structure
 
 ```
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 requirements.txt             - project requirements
 ```
 
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 ## Database
 
 ![Database Schema](db_schema.png)