diff --git a/documents/main.md b/documents/main.md
index bfdbd0b..798fcd2 100644
--- a/documents/main.md
+++ b/documents/main.md
@@ -1 +1,119 @@
-# template
+
+# Markdown Example
+
+## 1. **Basic Formatting**
+
+You can make text **bold** or *italic*.
+
+**Bold and _Italic_** can be combined.
+
+---
+
+## 2. **Lists**
+
+### Unordered List:
+- Item 1
+  - Subitem 1.1
+  - Subitem 1.2
+- Item 2
+
+### Ordered List:
+1. First item
+2. Second item
+   1. Subitem 2.1
+   2. Subitem 2.2
+
+---
+
+## 3. **Links and Images**
+
+[OpenAI](https://www.openai.com)
+
+<!-- ![OpenAI Logo](https://www.openai.com/favicon.ico) -->
+
+---
+
+## 4. **Blockquotes**
+
+> "The only limit to our realization of tomorrow is our doubts of today."  
+> — *Franklin D. Roosevelt*
+
+---
+
+## 5. **Code Blocks**
+
+Inline code: `print("Hello, World!")`
+
+Python code block:
+```python
+def greet(name):
+    print(f"Hello, {name}!")
+greet("Markdown")
+
+---
+
+## 6. **Tables**
+
+| Name     | Age | Country |
+|----------|-----|---------|
+| Alice    | 24  | USA     |
+| Bob      | 30  | UK      |
+| Charlie  | 28  | Canada  |
+
+---
+
+## 7. **Task Lists**
+
+- [x] Write a markdown example
+- [ ] Review the document
+- [ ] Submit the assignment
+
+---
+
+## 8. **Footnotes**
+
+This is a statement with a footnote.[^1]
+
+[^1]: This is the footnote explaining the statement.
+
+---
+
+## 9. **Horizontal Rules**
+
+---
+
+## 10. **Emojis**
+
+Let's celebrate :tada: and have some fun :smile:!
+
+---
+
+## 11. **Heading with ID**
+
+### Custom Heading {#custom-heading}
+
+You can link to [this heading](#custom-heading) using its ID.
+
+---
+
+## 12. **Highlighting**
+
+==This text is highlighted== for emphasis.
+
+---
+
+## 13. **Mathematical Expressions**
+
+You can include math using LaTeX:  
+$$ E = mc^2 $$
+
+---
+
+## 14. **HTML Elements**
+
+You can also use HTML elements:  
+<kbd>Ctrl</kbd> + <kbd>C</kbd> to copy.
+
+---
+
+Enjoy experimenting with **Markdown**!