CODEOWNERS: add alexm to subset

Signed-off-by: Alexander Merritt <mail@alexmerritt.de>

Author: alexandermerritt

.github/CODEOWNERS

@@ -1,9 +1,9 @@
 # Changes to these paths require review from one of the listed owners.
 
 /.github/          @kaniini @azenla @bleggett @tycho
-/hack/             @kaniini @azenla @bleggett @tycho
-/patches/          @kaniini @azenla @bleggett @tycho
+/hack/             @kaniini @azenla @bleggett @tycho @alexandermerritt
+/patches/          @kaniini @azenla @bleggett @tycho @alexandermerritt
 /patches-nvidia/   @kaniini @azenla @bleggett @tycho
-/configs/          @kaniini @azenla @bleggett @tycho
-/Dockerfile        @kaniini @azenla @bleggett @tycho
-/config.yaml       @kaniini @azenla @bleggett @tycho
+/configs/          @kaniini @azenla @bleggett @tycho @alexandermerritt
+/Dockerfile        @kaniini @azenla @bleggett @tycho @alexandermerritt
+/config.yaml       @kaniini @azenla @bleggett @tycho @alexandermerritt