MAINTAINERS.md: add afbjorklund and balajiv113

Anders F Björklund (afbjorklund) and Balaji Vijayakumar (balajiv113) have been
very actively contributing to the project:

https://github.com/lima-vm/lima/pulls?q=is%3Apr+author%3Aafbjorklund
https://github.com/lima-vm/lima/pulls?q=is%3Apr+author%3Abalajiv113

Signed-off-by: Akihiro Suda <[email protected]>

Author: AkihiroSuda

MAINTAINERS.md

@@ -1,9 +1,11 @@
 # Lima maintainers
 
-| Name         | GitHub ID (not Twitter ID)                     | E-mail address for reporting security issues | GPG fingerprint                                                                          |
-|--------------|------------------------------------------------|----------------------------------------------|------------------------------------------------------------------------------------------|
-| Akihiro Suda | [@AkihiroSuda](https://github.com/AkihiroSuda) | (See GitHub profile)                         | [C020 EA87 6CE4 E06C 7AB9  5AEF 4952 4C6F 9F63 8F1A](https://github.com/AkihiroSuda.gpg) |
-| Jan Dubois   | [@jandubois](https://github.com/jandubois)     | (See GitHub profile)                         |                                                                                          |
+| Name               | GitHub ID (not Twitter ID)                     | E-mail address for reporting security issues | GPG fingerprint                                                                          |
+|--------------------|------------------------------------------------|----------------------------------------------|------------------------------------------------------------------------------------------|
+| Akihiro Suda       | [@AkihiroSuda](https://github.com/AkihiroSuda) | (See GitHub profile)                         | [C020 EA87 6CE4 E06C 7AB9  5AEF 4952 4C6F 9F63 8F1A](https://github.com/AkihiroSuda.gpg) |
+| Jan Dubois         | [@jandubois](https://github.com/jandubois)     | (See GitHub profile)                         |                                                                                          |
+| Anders F Björklund | [@afbjorklund](https://github.com/afbjorklund) | (See GitHub profile)                         |                                                                                          |
+| Balaji Vijayakumar | [@balajiv113](https://github.com/balajiv113)   | (See GitHub profile)                         |                                                                                          |
 
 
 E-mail addresses are expected to be used for reporting security issues.