Update image links in README for detection sections

Update screenshots in README.md

Delete evidence/screenshots/splunk-bruteforce-results.png

Add screenshot of Splunk brute force results

Update splunk-bruteforce-results.png

Add screenshot of Splunk brute force results

Add screenshots to evidence README

Update evidence section with new image links

Revise README for SOC Automation project

Add query to detect suspicious login spikes

Create suspicious_login_spike.spl

Refactor enrich function and improve usage message

Revise README for SOC Automation project

Create brute_force_response.md

Add PowerShell script to block IP addresses