Updated MAINTAINERS.md to match recommended opensearch-project format. (

#358)

Signed-off-by: dblock <dblock@amazon.com>

MAINTAINERS.md

@@ -1,9 +1,11 @@
-# OpenSearch JavaScript Client Maintainers
+## Overview
+
+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).
 
 ## Current Maintainers
 
 | Maintainer            | GitHub ID                                     | Affiliation |
-|-----------------------|-----------------------------------------------|-------------|
+| --------------------- | --------------------------------------------- | ----------- |
 | Anan Zhuang           | [ananzh](https://github.com/ananzh)           | Amazon      |
 | Bishoy Boktor         | [boktorbb](https://github.com/boktorbb)       | Amazon      |
 | Kawika (Rocky) Avilla | [kavilla](https://github.com/kavilla)         | Amazon      |
@@ -12,7 +14,3 @@
 | Daniel Doubrovkine    | [dblock](https://github.com/dblock)           | Amazon      |
 | Vacha Shah            | [VachaShah](https://github.com/VachaShah)     | Amazon      |
 | Theo Truong           | [nhtruong](https://github.com/nhtruong)       | Amazon      |
-
-[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).