Fix: MAINTAINERS.md format. (opensearch-project#890)

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

Author: dblock

MAINTAINERS.md

@@ -4,23 +4,21 @@ This document contains a list of maintainers in this repo. See [opensearch-proje
 
 ## Current Maintainers
 
-| Maintainer           | GitHub ID                                   | Affiliation |
-|----------------------|---------------------------------------------|-------------|
-| Bhavana Goud Ramaram | [rbhavna](https://github.com/rbhavna)                   | Amazon      |
+| Maintainer           | GitHub ID                                           | Affiliation |
+| -------------------- | --------------------------------------------------- | ----------- |
+| Bhavana Goud Ramaram | [rbhavna](https://github.com/rbhavna)               | Amazon      |
 | Charlie Yang         | [model-collapse](https://github.com/model-collapse) | Amazon      |
-| Dhrubo Saha          | [dhrubo-os](https://github.com/dhrubo-os)             | Amazon      |
-| Jing Zhang           | [jngz-es](https://github.com/jngz-es)                   | Amazon      |
-| Junshen Wu           | [wujunshen](https://github.com/wujunshen)             | Amazon      |
-| Sicheng Song         | [b4sjoo](https://github.com/b4sjoo)                    | Amazon      |
-| Xun Zhang            | [Zhangxunmt](https://github.com/Zhangxunmt)            | Amazon      |
-| Yaliang Wu           | [ylwu-amzn](https://github.com/ylwu-amzn)             | Amazon      |
-| Zan Niu              | [zane-neo](https://github.com/
-zane-neo)                  | Amazon      |
-
+| Dhrubo Saha          | [dhrubo-os](https://github.com/dhrubo-os)           | Amazon      |
+| Jing Zhang           | [jngz-es](https://github.com/jngz-es)               | Amazon      |
+| Junshen Wu           | [wujunshen](https://github.com/wujunshen)           | Amazon      |
+| Sicheng Song         | [b4sjoo](https://github.com/b4sjoo)                 | Amazon      |
+| Xun Zhang            | [Zhangxunmt](https://github.com/Zhangxunmt)         | Amazon      |
+| Yaliang Wu           | [ylwu-amzn](https://github.com/ylwu-amzn)           | Amazon      |
+| Zan Niu              | [zane-neo](https://github.com/zane-neo)             | Amazon      |
 
 ## Emeritus
 
-| Maintainer             | GitHub ID                                   | Affiliation |
-|----------------------|---------------------------------------------|-------------|
-| Jackie Han        | [jackiehanyang](https://github.com/jackiehanyang) | Amazon      |
-| Mingshi Liu       | [mingshl](https://github.com/mingshl)           | Amazon      |
+| Maintainer  | GitHub ID                                         | Affiliation |
+| ----------- | ------------------------------------------------- | ----------- |
+| Jackie Han  | [jackiehanyang](https://github.com/jackiehanyang) | Amazon      |
+| Mingshi Liu | [mingshl](https://github.com/mingshl)             | Amazon      |