Add baoyu-skills package

baoyu-skills/skills/baoyu-infographic/references/layouts/periodic-table.md

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+# periodic-table
+
+Grid of categorized elements with consistent cell formatting.
+
+## Structure
+
+- Rectangular grid
+- Each cell is one element
+- Color-coded categories
+- Consistent cell format
+- Optional grouping gaps
+
+## Best For
+
+- Categorized collections
+- Tool/resource catalogs
+- Skill matrices
+- Element collections
+- Reference guides
+
+## Visual Elements
+
+- Uniform cell sizes
+- Category colors
+- Symbol/abbreviation prominent
+- Small icon per cell
+- Category legend
+
+## Text Placement
+
+- Title at top
+- Cell: symbol, name, brief info
+- Category names in legend
+- Optional row/column headers
+- Footnotes for special cases
+
+## Recommended Pairings
+
+- `pop-art`: Vibrant element grids
+- `pixel-art`: Retro collection displays
+- `corporate-memphis`: Business tool catalogs