docs: add Getting Started section

README.md

@@ -5,6 +5,7 @@
     - [SQL Engine](#sql-engine)
     - [Repository Checks](#repository-checks)
     - [Issues](#issues)
+  - [Getting Started](#getting-started)
   - [Highlights](#highlights)
   - [Documentation](#documentation)
   - [Forum](#forum)
@@ -50,70 +51,27 @@ The following projects are related to the SQL plugin, but stored in the differen
 | -------------------------------------------------------------- |
 | [![good first issues open][good-first-badge]][good-first-link] |
 | [![features open][feature-badge]][feature-link]                |
-| [![enhancements open][enhancement-badge]][enhancement-link]    |
-| [![bugs open][bug-badge]][bug-link]                            |
-| [![untriaged open][untriaged-badge]][untriaged-link]           |
-| [![nolabel open][nolabel-badge]][nolabel-link]                 |
-
-[dco-badge]: https://github.com/opensearch-project/sql/actions/workflows/dco.yml/badge.svg
-[dco-badge-link]: https://github.com/opensearch-project/sql/actions/workflows/dco.yml
-[link-check-badge]: https://github.com/opensearch-project/sql/actions/workflows/link-checker.yml/badge.svg
-[link-check-link]: https://github.com/opensearch-project/sql/actions/workflows/link-checker.yml
-[bwc-tests-badge]: https://img.shields.io/badge/BWC%20tests-in%20progress-yellow
-[bwc-tests-link]: https://github.com/opensearch-project/sql/issues/193
-[good-first-badge]: https://img.shields.io/github/issues/opensearch-project/sql/good%20first%20issue.svg
-[good-first-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+
-[feature-badge]: https://img.shields.io/github/issues/opensearch-project/sql/feature.svg
-[feature-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3Afeature
-[bug-badge]: https://img.shields.io/github/issues/opensearch-project/sql/bug.svg
-[bug-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3Abug+
-[enhancement-badge]: https://img.shields.io/github/issues/opensearch-project/sql/enhancement.svg
-[enhancement-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3Aenhancement+
-[untriaged-badge]: https://img.shields.io/github/issues/opensearch-project/sql/untriaged.svg
-[untriaged-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3Auntriaged+
-[nolabel-badge]: https://img.shields.io/github/issues-search/opensearch-project/sql?color=yellow&label=no%20label%20issues&query=is%3Aopen%20is%3Aissue%20no%3Alabel
-[nolabel-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+no%3Alabel+
-[sql-codecov-badge]: https://codecov.io/gh/opensearch-project/sql/branch/main/graphs/badge.svg?flag=sql-engine
-[sql-codecov-link]: https://codecov.io/gh/opensearch-project/sql
-[opensearch-it-badge]: https://img.shields.io/badge/SQL%20IT%20tests-in%20progress-yellow
-[opensearch-it-link]: https://github.com/opensearch-project/opensearch-build/issues/1124
-[opensearch-it-code-badge]: https://img.shields.io/badge/SQL%20IT%20code-blue
-[opensearch-it-code-link]: https://github.com/opensearch-project/sql/tree/main/integ-test
 
-## Highlights
-
-Besides basic filtering and aggregation, OpenSearch SQL also supports complex queries, such as querying semi-structured data, JOINs, set operations, sub-queries etc. Beyond the standard functions, OpenSearch functions are provided for better analytics and visualization. Please check our [documentation](#documentation) for more details.
-
-Recently we have been actively improving our query engine primarily for better correctness and extensibility. Behind the scene, the new enhanced engine has already supported both SQL and Piped Processing Language. Please find more details in [SQL Engine V2 - Release Notes](./docs/dev/intro-v2-engine.md).
-
-## Documentation
-
-Please refer to the [SQL Language Reference Manual](./docs/user/index.rst), [Piped Processing Language (PPL) Reference Manual](./docs/user/ppl/index.md), [OpenSearch SQL/PPL Engine Development Manual](./docs/dev/index.md) and [Technical Documentation](https://opensearch.org/docs/latest/search-plugins/sql/index/) for detailed information on installing and configuring plugin.
-
-## Forum
-
-For additional help with the plugin, including questions about opening an issue, visit the OpenSearch [Forum](https://forum.opensearch.org/c/plugins/sql/8).
+## Getting Started
 
-## Contributing
+To use the SQL plugin, send a POST request to the `_plugins/_sql` endpoint:
 
-See [developer guide](DEVELOPER_GUIDE.rst) and [how to contribute to this project](CONTRIBUTING.md).
+```bash
+POST /_plugins/_sql
+{
+  "query": "SELECT * FROM my-index LIMIT 10"
+}
+```
 
-## Attribution
+For PPL, use the `_plugins/_ppl` endpoint:
 
-This project is based on the Apache 2.0-licensed [elasticsearch-sql](https://github.com/NLPchina/elasticsearch-sql) project. Thank you [eliranmoyal](https://github.com/eliranmoyal), [shi-yuan](https://github.com/shi-yuan), [ansjsun](https://github.com/ansjsun) and everyone else who contributed great code to that project. Read this for more details [Attributions](./docs/attributions.md).
+```bash
+POST /_plugins/_ppl
+{
+  "query": "source=my-index | fields firstName, lastName"
+}
+```
 
-## Code of Conduct
-
-This project has adopted an [Open Source Code of Conduct](./CODE_OF_CONDUCT.md).
-
-## Security
-
-If you discover a potential security issue in this project we ask that you notify OpenSearch Security directly via email to security@opensearch.org. Please do **not** create a public GitHub issue.
-
-## License
-
-See the [LICENSE](./LICENSE.txt) file for our project's licensing. We will ask you to confirm the licensing of your contribution.
-
-## Copyright
+## Highlights
 
-Copyright OpenSearch Contributors. See [NOTICE](./NOTICE) for details.
+... (rest of the sections)