Super minor comment: typically in Python there should be no space between `parameter=value` and there should be a space after commas:
```
<Gauss1DModel(amplitude=[10.0], xcen=[4.2000000000000002], xsigma=[2.1000000000000001], paramdim=1)>
```
If you change the code to print it this way it should be updated everywhere in the docs.