Update the code in manual and examples to be formatted more nicely

[eddiebergman]

Formats the code in the docs as it would be written and lint acceptable.

[codecov]

Codecov Report

Merging #1229 (d7e63c6) into development (a38a5c3) will increase coverage by 0.18%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development    #1229      +/-   ##
===============================================
+ Coverage        88.11%   88.29%   +0.18%     
===============================================
  Files              139      139              
  Lines            10993    11188     +195     
===============================================
+ Hits              9687     9879     +192     
- Misses            1306     1309       +3     

Impacted Files	Coverage Δ
autosklearn/util/logging_.py	88.96% <0.00%> (+0.68%)	⬆️
...ine/components/classification/gradient_boosting.py	93.91% <0.00%> (+0.86%)	⬆️
...ine/components/feature_preprocessing/kernel_pca.py	96.49% <0.00%> (+1.75%)	⬆️
autosklearn/automl.py	87.89% <0.00%> (+1.91%)	⬆️
autosklearn/pipeline/implementations/util.py	84.37% <0.00%> (+3.12%)	⬆️
...eline/components/feature_preprocessing/fast_ica.py	97.82% <0.00%> (+4.34%)	⬆️

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