Improved CHANGELOG text on extracting bibtex from a plain text string

[ciskip]

CHANGELOG.md

@@ -178,7 +178,7 @@ We refer to [GitHub issues](https://github.com/JabRef/jabref/issues) by using `#
 - The Medline fetcher now normalizes the author names according to the BibTeX-Standard [#4345](https://github.com/JabRef/jabref/issues/4345)
 - We added an option on the Linked File Viewer to rename the attached file of an entry directly on the JabRef. [#4844](https://github.com/JabRef/jabref/issues/4844)
 - We added an option in the preference dialog box that allows user to enable helpful tooltips.[#3599](https://github.com/JabRef/jabref/issues/3599)
-- We added a tool for extracting BibTeX entries from plain text. [#5206](https://github.com/JabRef/jabref/pull/5206)
+- We reworked the functionality for extracting BibTeX entries from plain text, because our used service [freecite shut down](https://library.brown.edu/libweb/freecite_notice.php). [#5206](https://github.com/JabRef/jabref/pull/5206)
 - We moved the dropdown menu for selecting the push-application from the toolbar into the external application preferences. [#674](https://github.com/JabRef/jabref/issues/674)
 - We removed the alphabetical ordering of the custom tabs and updated the error message when trying to create a general field with a name containing an illegal character. [#5019](https://github.com/JabRef/jabref/issues/5019)
 - We added a context menu to the bib(la)tex-source-editor to copy'n'paste. [#5007](https://github.com/JabRef/jabref/pull/5007)