Correction of an incorrect URL for importing AI agent skills.

This issue identifies a direct functional bug: an incorrect URL for importing AI agent skills. While seemingly minor, such errors directly impede user onboarding and the utility of `skills-manage` as a centralized skill hub. Users cannot leverage external skill repositories if the provided links are broken. This highlights the necessity for rigorous validation of external resource paths, especially for a product designed to aggregate skills from '20+ platforms.' Operational reliability for external integrations is paramount. Repeated instances of broken links erode user trust and increase support burden, directly impacting the product's perceived quality and ease of use.