This PR:
- updates navigation instructions to accommodate for the navigation
changes related to solution views.
- updates instructions for adding sample data to rely on the
integrations page instead of the home page, that only exists with the
classic solution view
- updates references to the home page to avoid confusing users using one
of the new solution views
Closes: https://github.com/elastic/platform-docs-team/issues/529
Closes: https://github.com/elastic/platform-docs-team/issues/540
* rename float to discrete
* use same section title level on all source files
* Elasticsearch => {es}
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>