Add a rotation example into the documentation

[lemonJumps]

Hiii!

I've been looking at how quaternions work for days, and I want to use them for a simple rotation, I know that you're supposed to do something like this:

q = quaternion.quaternion(0,0,0,0)
v = numpy.array([1,2,3])

print(q*v*q.conjugate())

and i know that x,y,z is a vector and w is the scaler and it's supposed to have a size of 1.
but uh, after looking at the docs, I have no idea what to actually do ;-;

I'm guessing most people simply want to take the despicable eurel angles, and use it to create quaternion to rotate an array of vectors :,D
I'd like to ask if you guys could add an example code of how to do this for smooth brained people like me.

thank you

[Denizantip]

I would add on this.
There is more like common case when there can be multiple quaternions and multiple vectors. How to do rotation in that case?
Elementwise

quats = np.array([[0, 1, 0, 0],[0, 0, 1, 0]])
q = quaternion.as_quat_array(quats)
vectors = np.arange(6).reshape((-1, 3))
q * vectors * q.conjugate()