No plot generated using umap.plot.points

Hi, I would like to know how to obtain the plot in the Python shell as I am not using the Jupyter notebook. I am running the code shown below in Sublime Text and no plot is being generated when the code is being run.

Thank you for your help.

```
import umap
import umap.plot
import numpy as np
from tensorflow.keras.datasets import mnist

(train_img, train_label),(test_img, test_label) = mnist.load_data()

x = train_img[:100]
x = x.reshape(-1, 784)

print(np.shape(x))

embed = umap.UMAP().fit(x)
umap.plot.points(embed, labels = train_label[:100])
```

Start by running the Python example shown in the issue and inspect the umap.plot.points entry point, focusing on behavior outside Jupyter. Done means the example produces the requested plot when run from Sublime Text or the issue is clarified with the required usage documented.

Written by the indexing model from the issue text.