Update MAINTAINERS.md (#1766)

Update maintainers to include folks from Yahoo

### Feature or Bugfix
<!-- please choose -->
- Refactoring

### Detail
- Update to maintainers

### Relates
- n/a

### Security
Please answer the questions below briefly where applicable, or write
`N/A`. Based on
[OWASP 10](https://owasp.org/Top10/en/).

- Does this PR introduce or modify any input fields or queries - this
includes
fetching data from storage outside the application (e.g. a database, an
S3 bucket)?
  - Is the input sanitized?
- What precautions are you taking before deserializing the data you
consume?
  - Is injection prevented by parametrizing queries?
  - Have you ensured no `eval` or similar functions are used?
- Does this PR introduce any functionality or component that requires
authorization?
- How have you ensured it respects the existing AuthN/AuthZ mechanisms?
  - Are you logging failed auth attempts?
- Are you using or adding any cryptographic features?
  - Do you use a standard proven implementations?
  - Are the used keys controlled by the customer? Where are they stored?
- Are you introducing any new policies/roles/users?
  - Have you used the least-privilege principle? How?


By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Author: NickCorbett

MAINTAINERS.md

@@ -12,4 +12,6 @@ doing it, and how to become one. If you're interested in becoming a maintainer,
 | Anmol Gandhi         | [anmolsgandhi](https://github.com/anmolsgandhi) | Amazon      |
 | Adriana Lopez        | [dlpzx](https://github.com/dlpzx)             | Amazon      |
 | Noah Paige           | [noah-paige](https://github.com/noah-paige)   | Amazon      |
-| Nikita Podshivalov   | [nikpodsh](https://github.com/nikpodsh)       | Amazon      |
+| Anushka Singh        | [anushka-singh](https://github.com/anushka-singh) | Yahoo      |
+| Rick Bernotas        | [rbernotas](https://github.com/rbernotas)       | Yahoo      |
+| Tejas Rajopadhye     | [TejasRGitHub](https://github.com/TejasRGitHub) | Yahoo      |