Add info about ability to export xlsx file from new addition .feature_interaction()

[exalate-issue-sync]

In 3.32.0.5, we [added ability to export .xlsx file|https://h2oai.atlassian.net/browse/PUBDEV-7954] using the argument, path='/mypath/file.xlsx' . But it is hard for the user to understand how it works.

We should:

Add to Python and R docs what path should be (e.g. /mypath/file.xlsx)

Add in [main docs|http://docs.h2o.ai/h2o/latest-stable/h2o-docs/data-science/gbm.html?highlight=feature_interaction#gbm-feature-interactions] that path can be an argument for saving the table as .xlsx.

[exalate-issue-sync]

Neema Mashayekhi commented: See this comment: [https://h2oai.atlassian.net/browse/PUBDEV-7954?focusedCommentId=57940|https://h2oai.atlassian.net/browse/PUBDEV-7954?focusedCommentId=57940|smart-link]

[h2o-ops]

JIRA Issue Details

Jira Issue: PUBDEV-8067
Assignee: hannah.tillman
Reporter: Neema Mashayekhi
State: Resolved
Fix Version: 3.32.1.2
Attachments: N/A
Development PRs: Available

[h2o-ops]

Linked PRs from JIRA

#5421