Let $C$ be a hyperelliptic curve of genus $g$, and let $L$ be a general line bundle of degree $g+1$.  By Riemann-Roch, $r(L) = 1$, and so the complete series $|L|$ gives a degree $g+1$ map to $\mathbb{P}^1$.  Then the product of this map and the degree $2$ map $C\to \mathbb{P}^1$ gives a map $C\to \mathbb{P}^1 \times \mathbb{P}^1$, whose image is a curve of type $(2,g+1)$.  But $\mathbb{P}^1\times \mathbb{P}^1$ is just a quadric in $\mathbb{P}^3$.



To see the map is an embedding, it will suffice to show that it is birational.  Indeed, the image has arithmetic genus $g$ by adjunction on a quadric surface.  But it also has geometric genus $g$ since $C$ is its normalization.  Thus the image is smooth if it is reduced.

Finally we must see that the map is birational, but this follows from the fact that $L$ is general.