fix: logo 右半部分从 CODING 改为 CODE

去掉难以正确渲染的 N 和 G 字母，右半部分简化为 CODE（4 字母），
与左半部分 AIR 组合为 AIR CODE。

packages/docs/essentials/code.mdx

@@ -0,0 +1,35 @@
+---
+title: "Code blocks"
+description: "Display inline code and code blocks"
+icon: "code"
+---
+
+## Inline code
+
+To denote a `word` or `phrase` as code, enclose it in backticks (`).
+
+```
+To denote a `word` or `phrase` as code, enclose it in backticks (`).
+```
+
+## Code blocks
+
+Use [fenced code blocks](https://www.markdownguide.org/extended-syntax/#fenced-code-blocks) by enclosing code in three backticks and follow the leading ticks with the programming language of your snippet to get syntax highlighting. Optionally, you can also write the name of your code after the programming language.
+
+```java HelloWorld.java
+class HelloWorld {
+    public static void main(String[] args) {
+        System.out.println("Hello, World!");
+    }
+}
+```
+
+````md
+```java HelloWorld.java
+class HelloWorld {
+    public static void main(String[] args) {
+        System.out.println("Hello, World!");
+    }
+}
+```
+````