Add release notes for 2.12 release (#261)

* added release notes for 2.12 release

Signed-off-by: sumukhswamy <[email protected]>

* updated links

Signed-off-by: sumukhswamy <[email protected]>

* updated links

Signed-off-by: sumukhswamy <[email protected]>

---------

Signed-off-by: sumukhswamy <[email protected]>
(cherry picked from commit 2d85d53)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

release-notes/opensearch-query-workbench.release-notes-2.12.0.0.md

@@ -0,0 +1,40 @@
+## Version 2.12.0.0 Release Notes
+
+Compatible with OpenSearch and OpenSearch Dashboards 2.12.0
+
+### Features
+
+- Add materlized views, manual refresh option ([#159](https://github.com/opensearch-project/dashboards-query-workbench/pull/159))
+- Added changes for making tree view persistent ([#153](https://github.com/opensearch-project/dashboards-query-workbench/pull/153))
+- Support dark mode and session for sql ([#165](https://github.com/opensearch-project/dashboards-query-workbench/pull/165))
+- Update ppl editor readonly property ([#248](https://github.com/opensearch-project/dashboards-query-workbench/pull/248))
+- Support for multiple datasource sessions ([#251](https://github.com/opensearch-project/dashboards-query-workbench/pull/251))
+
+### Bug Fixes
+
+- fixed create table async query bug ([#158](https://github.com/opensearch-project/dashboards-query-workbench/pull/158))
+- design changes for loading, changed the banner: ([#170](https://github.com/opensearch-project/dashboards-query-workbench/pull/170))
+- Make checkpoint mandatory, add watermark delay, minor UI fixes ([#173](https://github.com/opensearch-project/dashboards-query-workbench/pull/173))
+- UI fixes for loading state, empty tree, added toast for error, fixed no indicies error ([#176](https://github.com/opensearch-project/dashboards-query-workbench/pull/176))
+- Session update, minor fixes for acceleration flyout ([#179](https://github.com/opensearch-project/dashboards-query-workbench/pull/179))
+- Add backticks and remove ckpt for manual refresh in acceleration flyout ([#183](https://github.com/opensearch-project/dashboards-query-workbench/pull/183))
+- UI-bug fixes, added create query for MV ([#182](https://github.com/opensearch-project/dashboards-query-workbench/pull/182))
+- added fix for loading spinner issue for other database ([#189](https://github.com/opensearch-project/dashboards-query-workbench/pull/189))
+- Fix error handling for user w/o proper permissions ([#195](https://github.com/opensearch-project/dashboards-query-workbench/pull/195))
+- Add minutes option to acceleration ([#249](https://github.com/opensearch-project/dashboards-query-workbench/pull/249))
+- added changes for cancel query not being able to cancel ([#256](https://github.com/opensearch-project/dashboards-query-workbench/pull/256))
+
+### Infrastructure
+
+- Fix jest tests ([#255](https://github.com/opensearch-project/dashboards-query-workbench/pull/255))
+
+### Maintenance
+
+- Increment version to 2.12.0.0 ([#164](https://github.com/opensearch-project/dashboards-query-workbench/pull/164))
+- Onboard Jenkins prod docker images to github actions ([#198](https://github.com/opensearch-project/dashboards-query-workbench/pull/198))
+- Bump Cypress to version 12 ([#234](https://github.com/opensearch-project/dashboards-query-workbench/pull/234))
+- Add E2E Cypress workflow for sql workbench ([#235](https://github.com/opensearch-project/dashboards-query-workbench/pull/235))
+- Add FTR workflow for sql workbench ([#239](https://github.com/opensearch-project/dashboards-query-workbench/pull/239))
+- Add eslint workflow ([#245](https://github.com/opensearch-project/dashboards-query-workbench/pull/245))
+- babel config change: ([#1229](https://github.com/opensearch-project/dashboards-query-workbench/pull/229))
+