Merge pull request coderoad#238 from coderoad/requirements

Update requirements

Author: ShMcK

README.md

@@ -25,10 +25,12 @@ Install CodeRoad from [this link in the VSCode Marketplace](https://marketplace.
 
 ### Requirements
 
+- OS: MacOS, Linux (Windows coming soon #227)
 - VSCode 1.40+
-- Node.js 10+
+- Node.js 12+ (10+ soon #237)
 - Git
 
+
 ## Creating Tutorials
 
 Build and share your own interactive tutorials.