fix:natural language

Author: zkoppert

Diff for: CONTRIBUTING.md

@@ -23,7 +23,7 @@ If you then still feel the need to ask a question and need clarification, we rec
 
 - Open an [Issue](https://github.com/github/issue-metrics/issues/new).
 - Provide as much context as you can about what you're running into.
-- Provide project and platform versions (nodejs, npm, etc), depending on what seems relevant.
+- Provide project and platform versions (Node.js, npm, etc), depending on what seems relevant.
 
 We will then take care of the issue as soon as possible.