how to plot f(x)=sin(x) and x-axis in unit of pi

[woofielord]

I would like to plot a simple trigonometry function f(x)=sin(x), and make x-axis in the unit of pi. e.g. 1/4 pi, 1/2 pi, 3/4 pi, etc.

Below is my code block used in obsidian, please advise how should I change it. Thank you!

---
title: 
xLabel: x
yLabel: y
bounds: [0,2,0,1]
disableZoom: false
grid: true
---
f(x) = sin(x)