Add 1.13 release blog (#1422)

* add version 1.13.0 to menu (cherry-pick #1404) (#1405)

add version 1.13.0 to menu (#1404)

Signed-off-by: Khaled Emara <khaled.emara@nirmata.com>
Co-authored-by: Khaled Emara <khaled.emara@nirmata.com>

* change version to 1.13.0 (#1406)

Signed-off-by: Khaled Emara <khaled.emara@nirmata.com>

* change menu version string (#1407)

change version_menu to 1.13.0

Signed-off-by: Khaled Emara <khaled.emara@nirmata.com>

* add 1.13 release blog

Signed-off-by: ShutingZhao <shuting@nirmata.com>

---------

Signed-off-by: Khaled Emara <khaled.emara@nirmata.com>
Signed-off-by: ShutingZhao <shuting@nirmata.com>
Co-authored-by: gcp-cherry-pick-bot[bot] <98988430+gcp-cherry-pick-bot[bot]@users.noreply.github.com>
Co-authored-by: Khaled Emara <khaled.emara@nirmata.com>

config/_default/params.toml

@@ -9,7 +9,7 @@ showLineNumbers = false
 
 # Menu title if your navbar has a versions selector to access old versions of your site.
 # This menu appears only if you have at least one [versions] set.
-version_menu = "main"
+version_menu = "v1.13.0"
 
 # Flag used in the "version-banner" partial to decide whether to display a
 # banner on every page indicating that this is an archived version of the docs.
@@ -19,7 +19,7 @@ archived_version = false
 # The version number for the version of the docs represented in this doc set.
 # Used in the "version-banner" partial to display a version number for the
 # current doc set.
-version = "main"
+version = "v1.13.0"
 
 # A link to latest version of the docs. Used in the "version-banner" partial to
 # point people to the main doc site.