documentation fix

[AmandaWasserman]

simple documentation fix

[github-actions]

Before [7c56dc6]	After [860b92b]	Ratio	Benchmark (Parameter)
197M	197M	1	benchmarks.peakmem_learn_loop('KNN')
188M	188M	1	benchmarks.peakmem_learn_loop('RandomForest')
153±2ms	153±0.6ms	1	benchmarks.time_learn_loop('KNN', 'UncSampling')
2.58±0.02s	2.59±0.02s	1	benchmarks.time_learn_loop('RandomForest', 'RandomSampling')
2.57±0.02s	2.56±0s	1	benchmarks.time_learn_loop('RandomForest', 'UncSampling')
151±0.5ms	149±0.9ms	0.99	benchmarks.time_learn_loop('KNN', 'RandomSampling')
137±3ms	129±2ms	0.94	benchmarks.time_feature_creation

Click here to view all benchmarks.

[drewoldag]

Looks good!