chore: update node version in .nvmrc & CONTRIBUTING.md (#599)

PeterDaveHello · web-flow · commit 9515dc28c1ca · 2022-05-09T08:45:12.000-07:00
Ref: #579, a5a066c
diff --git a/.nvmrc b/.nvmrc
@@ -1 +1 @@
-8.10
+12.8.1
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -143,7 +143,7 @@ preset. This helps keep our Markdown tidy and consistent.
 
 ### Node.js Version Requirements
 
-Mercury is built against Node `>= v8.10`. Since this is the
+Mercury is built against Node `>= v12.8.1`. Since this is the
 version we run in our CI environments, we recommend you use it when working on
 the Mercury codebase.
 
