Fix logo size (#1)

Author: AlteredCoder

README.md

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 Your ultimate IP dex!
 
-![ipdex Logo](img/logo.svg)
+<p align="center">
+<img src="img/logo.svg" width="300" height="300" />
+</p>
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 **ipdex** is a simple CLI tool to gather insight about a list of IPs or an IP using the [CrowdSec CTI](https://www.crowdsec.net/cyber-threat-intelligence) (Cyber Threat Intelligence) API.
 
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 ## Table of Contents
 
-## Table of Contents
-
 - [Introduction](#introduction)
 - [Prerequisites](#prerequisites)
 - [Quickstart](#quickstart)