Update MAINTAINERS.m to add new maintainer. (opensearch-project#127)

Signed-off-by: Saurabh Singh <sisurab@amazon.com>

Co-authored-by: Saurabh Singh <sisurab@amazon.com>

Author: getsaurabh02

MAINTAINERS.md

@@ -1,13 +1,14 @@
 ## Maintainers
 
-| Maintainer | GitHub ID | Affiliation |
-| --------------- | --------- | ----------- |
-| Ashish Agrawal | [lezzago](https://github.com/lezzago) | Amazon |
-| Mohammad Qureshi | [qreshi](https://github.com/qreshi) | Amazon |
-| Sriram Kosuri | [skkosuri-amzn](https://github.com/skkosuri-amzn) | Amazon |
-| Bowen Lan | [bowenlan-amzn](https://github.com/bowenlan-amzn) | Amazon |
-| Rishabh Maurya | [rishabhmaurya](https://github.com/rishabhmaurya) | Amazon | 
-| Tianli Feng | [tlfeng](https://github.com/tlfeng) | Amazon |
-| Annie Lee | [leeyun-amzn](https://github.com/leeyun-amzn) | Amazon |
+| Maintainer       | GitHub ID                                         | Affiliation |
+|------------------|---------------------------------------------------| ----------- |
+| Ashish Agrawal   | [lezzago](https://github.com/lezzago)             | Amazon |
+| Mohammad Qureshi | [qreshi](https://github.com/qreshi)               | Amazon |
+| Sriram Kosuri    | [skkosuri-amzn](https://github.com/skkosuri-amzn) | Amazon |
+| Bowen Lan        | [bowenlan-amzn](https://github.com/bowenlan-amzn) | Amazon |
+| Rishabh Maurya   | [rishabhmaurya](https://github.com/rishabhmaurya) | Amazon | 
+| Tianli Feng      | [tlfeng](https://github.com/tlfeng)               | Amazon |
+| Annie Lee        | [leeyun-amzn](https://github.com/leeyun-amzn)     | Amazon |
+| Saurabh Singh    | [getsaurabh02](https://github.com/getsaurabh02)    | 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).