Sure, here's a cheat sheet for Markdown formatting:

1. Headers:

   • Use # for headers, with more # symbols for smaller headers (e.g., # Header 1, ## Header 2, ### Header 3, and so on).

2. Emphasis:

   • Use * or _ for italics (e.g., *italic* or _italic_).
   • Use ** or __ for bold (e.g., **bold** or __bold__).
   • Use *** or ___ for bold and italics combined (e.g., ***bold and italic*** or ___bold and italic___).

3. Lists:

   • Unordered list: Use *, -, or + followed by a space (e.g., * Item 1, - Item 2, + Item 3).
   • Ordered list: Use numbers followed by a period and a space (e.g., 1. Item 1, 2. Item 2, 3. Item 3).

4. Links:

   • Inline link: [Link Text](URL) (e.g., [Google](https://www.google.com)).
   • Reference link: [Link Text][reference], where [reference]: URL is defined elsewhere in the document.

5. Images:

   • Inline image: ![Alt Text](Image URL) (e.g., ![Logo](https://example.com/logo.png)).
   • Reference image: ![Alt Text][image_reference], where [image_reference]: Image URL is defined elsewhere.

6. Blockquotes:

   • Use > followed by a space for blockquotes (e.g., > This is a blockquote).

7. Code:

   • Inline code: Enclose code in backticks (e.g., `code`).
   • Code block: Use triple backticks (```code```) for multiple lines of code or for syntax highlighting, specify the language after the first triple backticks (e.g., ```python code here ```).

8. Horizontal Rule:

   • Use three or more hyphens ---, asterisks ***, or underscores ___ on a line by themselves for a horizontal rule.

9. Tables:

   • Use pipe | to separate columns and hyphens - to create the header row.
   • Example:

     | Column 1 | Column 2 |
     |----------|----------|
     | Row 1    | Data 1   |
     | Row 2    | Data 2   |
     

10. Escaping Characters:

    • Use a backslash \ before Markdown special characters to display them as regular characters (e.g., \* for *, \_ for _).

This cheat sheet covers the basic Markdown syntax for common formatting needs.