v4.2.1: surface TA capability in docs + README ToC - README intro now leads with the built-in TA capability and links to the dedicated section - README gets a Table of Contents - SKILL.md frontmatter + intro elevate TA; new Technical Analysis section replaces the curl example previously buried under Symbols - Both docs link to github.com/psyb0t/docker-wickworks for the indicator catalog No code changes.