Update alt-text-scan.py.md

Adding headings

alt-text-scan.py.md

@@ -1,34 +1,34 @@
 # Image Analysis Script for Web Accessibility
 
-Overview
+## Overview
 
 This script analyzes images on a website for accessibility compliance. It identifies issues with alt text and other metadata, providing suggestions to improve accessibility. The script can parse sitemaps or crawl the website manually if a sitemap is unavailable or invalid.
 
-Features
+## Features
 
 	•	Crawl websites for image data using sitemaps or manual crawling.
 	•	Analyze image metadata, including alt text, title, and size.
 	•	Generate detailed suggestions for improving alt text.
 	•	Exclude non-HTML content (e.g., PDFs, videos).
 	•	Output results to a CSV file with a summary of findings and recommendations.
 
-Installation
+## Installation
 
-Prerequisites
+### Prerequisites
 
 Ensure you have Python 3.10 or later installed. Install the following Python libraries:
 
 pip install requests beautifulsoup4 pandas tqdm textblob readability-lxml textstat
 
-Usage
+## Usage
 
 Running the Script
 
 To run the script, use the following command:
 
 python3.10 alt_scan.py <domain> --sample_size <number>
 
-Parameters
+## Parameters
 
 	•	<domain>: The starting URL for the website (e.g., https://example.com).
 	•	--sample_size: Maximum number of unique URLs to crawl (default: 100).
@@ -39,7 +39,7 @@ python3.10 alt_scan.py https://www.whitehouse.gov --sample_size 1000
 
 This command crawls up to 1,000 unique pages on the specified domain and analyzes the images found.
 
-Output
+## Output
 
 The script generates two files:
 	1.	CSV File: <domain>_images.csv
@@ -59,7 +59,7 @@ CSV Columns
 	•	Load_Time (s): Time taken to fetch the image.
 	•	Suggestions: Accessibility improvement recommendations.
 
-Features of Analysis
+## Features of Analysis
 
 The script provides actionable suggestions, including:
 	•	“Image hidden with no semantic value” if an image is marked with aria-hidden or hidden attributes.
@@ -69,7 +69,7 @@ The script provides actionable suggestions, including:
 	•	Suggestions to avoid unnecessary phrases like “A picture of” in alt text.
 	•	Readability checks using a customizable threshold.
 
-Troubleshooting
+## Troubleshooting
 
 Invalid or Missing Sitemap
 
@@ -82,14 +82,14 @@ The script excludes non-HTML content, such as:
 	•	Media files (.jpg, .mp4, etc.)
 	•	Archives (.zip, .rar, etc.)
 
-Logging Issues
+## Logging Issues
 
 The script outputs warnings for any URLs it fails to process.
 
-Contributing
+## Contributing
 
 Feel free to submit issues or pull requests to improve this script.
 
-License
+## License
 
 This project is open-source and available under the MIT License.