Update MAINTAINERS.md

Signed-off-by: Gaulthier Gain <[email protected]>
Reviewed-by: Simon Kuenzer <[email protected]>

Author: gaulthiergain

MAINTAINERS.md

@@ -4,8 +4,8 @@ Maintainers List
 For notes on how to read this information, please refer to `MAINTAINERS.md` in
 the main Unikraft repository.
 
-	NEWLIB-UNIKRAFT
-	M:	Felipe Huici <[email protected]>
-	M:	Florian Schmidt <florian.schmidt@neclab.eu>
-	L:	[email protected]
+	LIBMUSL-UNIKRAFT
+	M:  Gaulthier Gain <[email protected]>
+	M:  Felipe Huici <felipe.huici@neclab.eu>
+	L:  [email protected]
 	F: *