Add release notes 2.10 (#5086)

Signed-off-by: Fanit Kolchina <kolchfa@amazon.com>

release-notes/opensearch-documentation-release-notes-2.10.0.md

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+# OpenSearch Documentation Website 2.10.0 Release Notes
+
+The OpenSearch 2.10.0 documentation includes the following additions and updates.
+
+## New documentation for 2.10.0
+
+- Add remote store main page updates. Add shallow snapshots [#5078](https://github.com/opensearch-project/documentation-website/pull/5078)
+- Add delimited term frequency token filter documentation [#5043](https://github.com/opensearch-project/documentation-website/pull/5043)
+- Add segment replication + remote store GA information [#5037](https://github.com/opensearch-project/documentation-website/pull/5037)
+- Add a note about zstd incompatibility with k-NN and security analytics [#5014](https://github.com/opensearch-project/documentation-website/pull/5014)
+- Add documentation for automatic Alerting workflows from detector creation [#5003](https://github.com/opensearch-project/documentation-website/pull/5003)
+- Add custom-codecs to list of bundled plugins [#5000](https://github.com/opensearch-project/documentation-website/pull/5000)
+- Update docs for Remote Segment and Remote Translog store stats surfaced via nodes/indices/cluster stats APIs [#4995](https://github.com/opensearch-project/documentation-website/pull/4995)
+- Add term frequency functions to score script query [#4988](https://github.com/opensearch-project/documentation-website/pull/4988)
+- Updating the K-NN Filters documentation due to recent enhancements in… [#4987](https://github.com/opensearch-project/documentation-website/pull/4987)
+- Add score normalization and combination documentation [#4985](https://github.com/opensearch-project/documentation-website/pull/4985)
+- Add new remote store options to Snapshot API [#4977](https://github.com/opensearch-project/documentation-website/pull/4977)
+- Add remote store buffer and index interval settings [#4973](https://github.com/opensearch-project/documentation-website/pull/4973)
+- Add Microsoft Teams webhook support for notifications [#4971](https://github.com/opensearch-project/documentation-website/pull/4971)
+- Add documentation that supports custom log types [#4969](https://github.com/opensearch-project/documentation-website/pull/4969)
+- Add ext object to search response [#4959](https://github.com/opensearch-project/documentation-website/pull/4959)
+- Add cluster setting for shard movement strategy [#4955](https://github.com/opensearch-project/documentation-website/pull/4955)
+- Add documentation for permission that provides access to system indexes [#4849](https://github.com/opensearch-project/documentation-website/pull/4849)
+
+## Documentation for 2.10.0 experimental features
+
+- Add conversation search documentation [#5018](https://github.com/opensearch-project/documentation-website/pull/5018)
+- Add concurrent segment search documentation [#4990](https://github.com/opensearch-project/documentation-website/pull/4990)