GITBOOK-9: change request with no subject merged in GitBook

SUMMARY.md

@@ -1,7 +1,6 @@
 # Table of contents
 
 * [Sylvester Kaczmarek - Space, AI & Robotics Cybersecurity](README.md)
-* [Portfolio Projects](portfolio-projects.md)
 * [Cybersecurity Tools & Skills](cybersecurity-tools-and-skills.md)
 * [Cognitive Warfare Strategies](cognitive-warfare-strategies.md)
 * [Threat Modeling for Space Systems](threat-modeling-for-space-systems.md)

portfolio-projects.md

@@ -1,2 +0,0 @@
-# Portfolio Projects
-