[8.13] [DOCS] Add a bug fix for 8.13.3 release notes (#182373) (#182871)

# Backport

This will backport the following commits from `main` to `8.13`:
- [[DOCS] Add a bug fix for 8.13.3 release notes
(#182373)](#182373)

<!--- Backport version: 8.9.8 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Elena
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Add a bug fix for 8.13.3 release notes (#182373)\n\n##
Summary\r\n\r\nThis PR adds a bug fix in the 8.13.3 release notes for
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Add a bug fix for 8.13.3 release notes (#182373)\n\n##
Summary\r\n\r\nThis PR adds a bug fix in the 8.13.3 release notes for
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Add a bug fix for 8.13.3 release notes (#182373)\n\n##
Summary\r\n\r\nThis PR adds a bug fix in the 8.13.3 release notes for
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docs/CHANGELOG.asciidoc

@@ -96,6 +96,8 @@ Fleet::
 * Fixes managed agent policy preconfiguration update ({kibana-pull}181624[#181624]).
 * Use lowercase dataset in template names ({kibana-pull}180887[#180887]).
 * Fixes KQL/kuery for getting Fleet Server agent count ({kibana-pull}180650[#180650]).
+Index Management::
+* Fixes `allow_auto_create` field in the Index Template form ({kibana-pull}178321[#178321]).
 Lens & Visualizations::
 * Fixes controls on fields with custom label ({kibana-pull}180615[#180615]).
 Machine Learning::