GFM

Autolink literals

www.example.com, https://example.com, and contact@example.com.

Footnote

A note¹

Strikethrough

one or two tildes.

Table

a	b	c	d

Tasklist

• to do
• done

$$X = F(T, DE)$$ $$twi = \sum_{\frac{x_{n}}{2}}^{2}t_n$$