docs: Add notes

README.md

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-# layouting-2023-main-w1
+# layouting-2023-main-w1
+
+- PAGES
+
+> <https://study-hex.github.io/layouting-2023-main-w1/>
+
+- 任務
+
+> <https://rpg.hexschool.com/task/344/show>
+
+- FIGMA
+
+> <https://www.figma.com/file/eB5X8OYO4whPx3btCZdr3w/>
+
+- 圖檔
+
+> <https://github.com/hexschool/2022-web-layout-training/tree/main/2023week1>
+
+---
+
+## NOTES
+
+- 表尾置中：`inline-block`、`text-center`
+
+- 元素靠右：設定寬度 50%、`margin-left: auto;`
+
+- 原地彈跳：`@keyframes`、`translateY(-16px);`