feat: add example articles

articles.example/2026-01-01/index.md

@@ -0,0 +1,40 @@
+---
+title: Demo
+author: kleπek
+draft: false
+thumbnail: ./thumbnail.jpg
+date: 2026-01-01
+---
+
+## Images
+
+PNG: ![png file](./atom.png)
+
+## highlight.js
+
+```typescript
+function test(arg1: string, arg2: number): string {
+    return `${arg1}: ${arg2}`
+}
+```
+
+```text
+text/plain
+```
+
+## Mermaid
+
+```mermaid
+flowchart LR
+  A --> B
+```
+
+## LaTex
+
+$$\Large\color{Red}{\frac{\Delta K}{2}=\frac{T_{2}}{x_{2}(x_{2}-x_{1})}-\frac{T_{1}}{x_{1}(x_{2}-x_{1})}}$$
+
+Inline LaTex $$\frac{\Delta K}{2}$$ in text
+
+## Lucide Icons
+
+Icon inside <i icon="atom"></i> text