Create examples for the Autoencoder section in the Python documentation

[exalate-issue-sync]

The http://docs.h2o.ai/h2o/latest-stable/h2o-py/docs/model_categories.html#module-h2o.model.autoencoder section in the Python documentation is missing examples.

The source file is located at h2o-3/h2o-py/model/autoencoder.py

An autoencoder example is available here: https://github.com/h2oai/h2o-3/blob/master/h2o-py/tests/testdir_algos/deeplearning/pyunit_anomaly_deeplearning_large.py

The examples use the mnist datasets in the bigdata/laptop folder:
train = h2o.import_file("https://s3.amazonaws.com/h2o-public-test-data/bigdata/laptop/mnist/train.csv.gz")
test = h2o.import_file("https://s3.amazonaws.com/h2o-public-test-data/bigdata/laptop/mnist/test.csv.gz")

[h2o-ops]

JIRA Issue Migration Info

Jira Issue: PUBDEV-6741
Assignee: hannah.tillman
Reporter: Angela Bartz
State: Resolved
Fix Version: 3.28.0.1
Attachments: N/A
Development PRs: Available

Linked PRs from JIRA

#3767