apply suggestions from code review

Co-authored-by: Fabrizio Ferri-Benedetti <[email protected]>

Author: colleenmcginnis

docs/configure/content-set/navigation.md

@@ -123,7 +123,7 @@ The TOC in principle follows the directory structure on disk.
   - folder: subsection
 ```
 
-If a folder does not explicitly define `children` all markdown files within that folder are included automatically
+If a folder does not explicitly define `children` all Markdown files within that folder are included automatically
 
 If a folder does define `children` all markdown files within that folder have to be included. `docs-builder` will error if it detects dangling documentation files.
 

docs/syntax/frontmatter.md

@@ -52,7 +52,7 @@ If you define `products` in a page's Markdown file and the `docset.yml` file als
 You can _not_ override doc set level `products` at the page level.
 
 :::{tip}
-`products` is distinct from `applies_to`, which is used to indicate feature availability and applicability.
+The purpose of the `products` field is different from `applies_to`: the former provides metadata to search engines, while the latter indicates feature availability and applicability.
 
 % Is this true?
 For example, while a page might contain content that is _applicable_ to Elastic Cloud Serverless projects,