Ex01 Day01 Correction misfit and typo

[JBarmentlo]

• Day: 01
• Exercise: 01

Typo:

in correction:

with y =  -0.75-x + 5

The results in the correction work for y = -0.75 * x + 5

also the thetas in the correction have a different shape from the example and they're not np.arrays

The return shapes from the fucntions in the scale also do not match the subject examples.

Fixed on:

• [ ] Github
• [ ] Gitlab