Added documentation for the plugins.query.field_type_tolerance setting (#1300)

[normanj-bitquill]

Description

Add documentation for the plugins.query.field_type_tolerance setting.

Related Issues

Resolves #1300

Check List

• [ ] New functionality includes testing.
• [ ] New functionality has been documented.
  • [ ] New functionality has javadoc added.
  • [ ] New functionality has a user manual doc added.
• [ ] API changes companion pull request created.
• [ ] Commits are signed per the DCO using --signoff.
• [ ] Public documentation issue/PR created.

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[normanj-bitquill]

could u add limitation of this setting. for instance, expression will failed.

@penghuo I added a limitations section.