[DOCS] Add missing AfterFileMetaDataUpdatedEvent documentation

Documentation/ApiOverview/Hooks/Events/Core/Resource/AfterFileMetaDataUpdatedEvent.rst

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+.. include:: /Includes.rst.txt
+.. index:: Events; AfterFileMetaDataUpdatedEvent
+.. _AfterFileMetaDataUpdatedEvent:
+
+
+=============================
+AfterFileMetaDataUpdatedEvent
+=============================
+
+This event is fired once metadata of a file was updated, in order to update custom metadata fields accordingly.
+
+API
+---
+
+.. include:: /CodeSnippets/Events/Core/Resource/AfterFileMetaDataUpdatedEvent.rst.txt

Documentation/CodeSnippets/Events/Core/Resource/AfterFileMetaDataUpdatedEvent.rst.txt

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+.. =========================================================
+.. Automatically generated by the TYPO3 Screenshots project.
+.. https://github.com/TYPO3-Documentation/t3docs-screenshots
+.. =========================================================
+..
+.. Extracted from TYPO3\CMS\Core\Resource\Event\AfterFileMetaDataCreatedEvent
+
+.. php:namespace::  TYPO3\CMS\Core\Resource\Event
+
+.. php:class:: AfterFileMetaDataUpdatedEvent
+
+   This event is fired once metadata of a file was updated, 
+   in order to update custom metadata fields accordingly.
+
+   .. php:method:: getFileUid()
+
+      :returntype: int
+
+   .. php:method:: getMetaDataUid()
+
+      :returntype: int
+
+   .. php:method:: getRecord()
+
+      :returntype: array