Update contact email for legal inquiries (#1724)

Author: wraithgar

content/policies/open-source-terms.mdx

@@ -243,7 +243,7 @@ Any arbitration award will include costs of the arbitration, reasonable attorney
 
 ## Notices and Questions
 
-You may send notice to npm and questions about the terms governing npm products and services to [legal@npmjs.com](mailto:legal@npmjs.com) or by mail to:
+You may send notice to npm and questions about the terms governing npm products and services to [legal-support@github.com](mailto:legal-support@github.com) or by mail to:
 
 GitHub, Inc  
 Attn: npm Legal Department