[DOCS] Adds 8.5.0 release notes (#143134)

* [DOCS] Adds 8.5.0 release notes

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Luke Elmers <lukeelmers@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Luke Elmers <lukeelmers@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: DeDe Morton <dede.morton@elastic.co>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: DeDe Morton <dede.morton@elastic.co>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: DeDe Morton <dede.morton@elastic.co>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: DeDe Morton <dede.morton@elastic.co>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Brandon Morelli <bmorelli25@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Brandon Morelli <bmorelli25@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Matthias Wilhelm <ankertal@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Matthias Wilhelm <ankertal@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Luke Elmers <lukeelmers@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Luke Elmers <lukeelmers@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: DeDe Morton <dede.morton@elastic.co>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: DeDe Morton <dede.morton@elastic.co>

* Review comments

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Matthias Wilhelm <ankertal@gmail.com>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Jeramy Soucy <jeramy.soucy@elastic.co>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Jeramy Soucy <jeramy.soucy@elastic.co>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: Jeramy Soucy <jeramy.soucy@elastic.co>

* Update docs/CHANGELOG.asciidoc

Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>

Co-authored-by: Luke Elmers <lukeelmers@gmail.com>
Co-authored-by: DeDe Morton <dede.morton@elastic.co>
Co-authored-by: Brandon Morelli <bmorelli25@gmail.com>
Co-authored-by: Matthias Wilhelm <ankertal@gmail.com>
Co-authored-by: Jeramy Soucy <jeramy.soucy@elastic.co>
Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>
Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

docs/developer/architecture/development-visualize-index.asciidoc

@@ -19,7 +19,7 @@ We would recommend waiting until later in `7.x` to upgrade your plugins if possi
 If you would like to keep up with progress on the visualizations plugin in the meantime,
 here are a few resources:
 
-* The <<breaking-changes-8.0.0,breaking changes>> documentation, where we try to capture any changes to the APIs as they occur across minors.
+* The {kibana-ref-all}/8.0/release-notes-8.0.0.html#breaking-changes-8.0.0[8.0.0 breaking changes], where we try to capture any changes to the APIs as they occur across minors.
 * link:https://github.com/elastic/kibana/issues/44121[Meta issue] which is tracking the move of the plugin to the new {kib} platform
 * Our link:https://www.elastic.co/blog/join-our-elastic-stack-workspace-on-slack[Elastic Stack workspace on Slack].
 * The {kib-repo}blob/{branch}/src/plugins/visualizations[source code], which will continue to be

docs/management/saved-objects/saved-object-ids.asciidoc

@@ -70,7 +70,7 @@ if you import it into the second space again, {kib} will find the second object
 
 WARNING: When you import a saved object and it is created with a different ID, if 1. it contains weak links to other saved objects (such as
 a dashboard with a Markdown URL to navigate to another dashboard) and 2. the object's ID has changed (step 3 above), those weak links will
-be broken. For more information, refer to <<known-issue-123550,the known issue in the changelog>>.
+be broken. For more information, refer to {kibana-ref-all}/8.0/release-notes-8.0.0.html#known-issue-8.0.0[the known issue in the changelog].
 
 [[saved-object-ids-impact-when-using-apis]]
 ===== Using the saved objects APIs

docs/setup/upgrade/upgrade-standard.asciidoc

@@ -31,7 +31,7 @@ Different versions of {kib} running against the same {es} index, such as during
 +
 
 Make sure you remove or update any configurations
-that are indicated in the <<breaking-changes-8.0.0,breaking changes>> documentation
+that are indicated in the {kibana-ref-all}/8.0/release-notes-8.0.0.html#breaking-changes-8.0.0[8.0.0 breaking changes],
 otherwise {kib} will fail to start.
 --
 . Upgrade any plugins by removing the existing plugin and reinstalling the
@@ -52,7 +52,7 @@ and becomes a new instance in the monitoring data.
 --
 . Copy the files from the `config` directory from your old installation to your
   new installation. Make sure you remove or update any configurations that are
-  indicated in the <<breaking-changes-8.0.0,breaking changes>> documentation
+  indicated in the {kibana-ref-all}/8.0/release-notes-8.0.0.html#breaking-changes-8.0.0[8.0.0 breaking changes],
   otherwise {kib} will fail to start.
 . Copy the files from the `data` directory from your old installation to your
   new installation.