Merge pull request #355 from m-ou-se/patch-1

Add me back to libs reviewers.

Author: Mark-Simulacrum

highfive/configs/rust-lang/rust.json

@@ -21,7 +21,8 @@
             "@joshtriplett",
             "@Mark-Simulacrum",
             "@kennytm",
-            "@yaahc"
+            "@yaahc",
+            "@m-ou-se"
         ],
         "infra-ci": [
             "@Mark-Simulacrum",