docs: fix README linting

README.md

@@ -1,12 +1,14 @@
+# ipsw-parser
+
 [![Python application](https://github.com/doronz88/ipsw_parser/workflows/Python%20application/badge.svg)](https://github.com/doronz88/ipsw_parser/actions/workflows/python-app.yml "Python application action")
 [![Pypi version](https://img.shields.io/pypi/v/ipsw_parser.svg)](https://pypi.org/project/ipsw_parser/ "PyPi package")
 [![Downloads](https://static.pepy.tech/personalized-badge/ipsw_parser?period=total&units=none&left_color=grey&right_color=blue&left_text=Downloads)](https://pepy.tech/project/ipsw_parser)
 
-# Overview
+## Overview
 
 python3 utility for parsing and extracting data from IPSW.
 
-# Installation
+## Installation
 
 ```shell
 python3 -m pip install ipsw-parser
@@ -15,7 +17,7 @@ python3 -m pip install ipsw-parser
 Additionally, if you installed [blacktop/ipsw](https://github.com/blacktop/ipsw), the IPSW extraction will also contain
 the split DSC.
 
-# Usage
+## Usage
 
 ```
 Usage: ipsw-parser [OPTIONS] COMMAND [ARGS]...