docs: fix format issue

Signed-off-by: Long Dai <[email protected]>

docs/root/version_history/current.rst

@@ -60,12 +60,11 @@ Removed Config or Runtime
 
 New Features
 ------------
+* crash support: restore crash context when continuing to processing requests or responses as a result of an asynchronous callback that invokes a filter directly. This is unlike the call stacks that go through the various network layers, to eventually reach the filter. For  a concrete example see: ``Envoy::Extensions::HttpFilters::Cache::CacheFilter::getHeaders`` which posts a callback on the dispatcher that will invoke the filter directly.
 * http: a new field `is_optional` is added to `extensions.filters.network.http_connection_manager.v3.HttpFilter`. When
   value is `true`, the unsupported http filter will be ignored by envoy. This is also same with unsupported http filter
   in the typed per filter config. For more information, please reference
   :ref:`HttpFilter <envoy_v3_api_field_extensions.filters.network.http_connection_manager.v3.HttpFilter.is_optional>`.
-
-* crash support: restore crash context when continuing to processing requests or responses as a result of an asynchronous callback that invokes a filter directly. This is unlike the call stacks that go through the various network layers, to eventually reach the filter. For a concrete example see: ``Envoy::Extensions::HttpFilters::Cache::CacheFilter::getHeaders`` which posts a callback on the dispatcher that will invoke the filter directly.
 * http: added support for :ref:`original IP detection extensions<envoy_v3_api_field_extensions.filters.network.http_connection_manager.v3.HttpConnectionManager.original_ip_detection_extensions>`.
   Two initial extensions were added, the :ref:`custom header <envoy_v3_api_msg_extensions.http.original_ip_detection.custom_header.v3.CustomHeaderConfig>` extension and the
   :ref:`xff <envoy_v3_api_msg_extensions.http.original_ip_detection.xff.v3.XffConfig>` extension.