fix: correct directory path for skill location in documentation

Signed-off-by: Frost Ming <me@frostming.com>

Author: frostming

src/skills/skill-creator/SKILL.md

@@ -20,8 +20,8 @@ equipped with procedural knowledge that no model can fully possess.
 
 When creating a skill, place it in one of these two roots:
 
-1. Project-local: `$workspace/.agent/skills/<skill-name>`
-2. Global: `~/.agent/skills/<skill-name>` (shared across workspaces)
+1. Project-local: `$workspace/.agents/skills/<skill-name>`
+2. Global: `~/.agents/skills/<skill-name>` (shared across workspaces)
 
 Prefer project-local by default. Use global only when the user explicitly wants the skill available across multiple workspaces.