[Backport 2.x] Updated MAINTAINERS.md to match recommended opensearch…

…-project format. (#77) (#78)

Signed-off-by: dblock <dblock@amazon.com>
(cherry picked from commit 657ebe5)

MAINTAINERS.md

@@ -1,12 +1,14 @@
-## Maintainers
+## Overview
 
-| Maintainer              | GitHub ID                               | Affiliation |
-|-------------------------|-----------------------------------------| ----------- |
-| Anirudha Jadhav         | [anirudha](https://github.com/anirudha) | Amazon      |
-| Michael Froh            | [msfroh](https://github.com/msfroh)     | Amazon      |
-| Mark Cohen              | [macohen](https://github.com/macohen)   | Amazon      |
-| Lior Perry              | [YANG-DB](https://github.com/YANG-DB)   | Amazon      |
-| Shenoy Pratik           | [ps48](https://github.com/ps48)         | Amazon      |
-| Louis Chu               | [noCharger](https://github.com/noCharger) | Amazon      |
+This document contains a list of maintainers in this repo. See [opensearch-project/.github/RESPONSIBILITIES.md](https://github.com/opensearch-project/.github/blob/main/RESPONSIBILITIES.md#maintainer-responsibilities) that explains what the role of maintainer means, what maintainers do in this and other repos, and how they should be doing it. If you're interested in contributing, and becoming a maintainer, see [CONTRIBUTING](CONTRIBUTING.md).
 
-[This document](https://github.com/opensearch-project/.github/blob/main/MAINTAINERS.md) explains what maintainers do in this repo, and how they should be doing it. If you're interested in contributing, see [CONTRIBUTING](CONTRIBUTING.md).
+## Current Maintainers
+
+| Maintainer      | GitHub ID                                 | Affiliation |
+| --------------- | ----------------------------------------- | ----------- |
+| Anirudha Jadhav | [anirudha](https://github.com/anirudha)   | Amazon      |
+| Michael Froh    | [msfroh](https://github.com/msfroh)       | Amazon      |
+| Mark Cohen      | [macohen](https://github.com/macohen)     | Amazon      |
+| Lior Perry      | [YANG-DB](https://github.com/YANG-DB)     | Amazon      |
+| Shenoy Pratik   | [ps48](https://github.com/ps48)           | Amazon      |
+| Louis Chu       | [noCharger](https://github.com/noCharger) | Amazon      |