[DOC] Add changelog notes for manual indexing of Users. (#3809)
[DOC] Add changelog notes for manual indexing of Users. (#3809)

* [DOC] Add changelog notes for manual indexing of Users.

* Fix Markdown format.

mainio/decidim,AjuntamentdeBarcelona/decidim,decidim/decidim,AjuntamentdeBarcelona/decidim,codegram/decidim,mainio/decidim,AjuntamentdeBarcelona/decidim,decidim/decidim,codegram/decidim,codegram/decidim,decidim/decidim,mainio/decidim,codegram/decidim,AjuntamentdeBarcelona/decidim,mainio/decidim,mainio/decidim