Update README.md

README.md

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 # Cuterle
 Bioinformatic tool which extract every domain annotated by InterProScan
 
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+![](./screenshots/main_home.png)
+
+## Getting started
+
+### Prerequisites
+
+- Python
+- pip
+
+### Installation
+
+Install the required Python packages; while you are in the project's root directory run the following command:
+
+```bash
+# Install requirements
+pip install -r requirements.txt
+```
+
+### Usage
+
+In terminal, run the following command. By default, this will only retrieve Bulbasaur.
+
+```bash
+# Run the Serebii.net scraper
+python scraper.py
+```
+
+Some useful commands are listed below.
+
+```bash