Add SDK devrel to codeowners (#2034)

Author: alexandratran

.github/CODEOWNERS

@@ -18,7 +18,7 @@
 /snaps/ @MetaMask/tech-writers @MetaMask/snaps
 
 # SDK documentation
-/sdk/ @MetaMask/tech-writers @MetaMask/sdk-devs
+/sdk/ @MetaMask/tech-writers @MetaMask/sdk-devs @MetaMask/sdk-devrel
 
 # Wallet documentation
 /wallet/ @MetaMask/tech-writers @MetaMask/wallet-api-platform-engineers