index.html

<h1>test</h1>

##test2

why does github pages not work like markup?

$$
\{\text{input: }(\mathbf{x}^k_i, \mathbf{y}^k_{i-1}) \to \text{label: }\mathbf{y}^k_i\}_{i=1}^N
\text{ where }\mathbf{y}^k_i = f_k(\mathbf{x}^k_i)
$$