Update TSC-Charter.md

Author: jasnell

TSC-Charter.md

@@ -74,10 +74,10 @@ including:
 * Development process and any coding standards.
 * Mediating technical conflicts between Collaborators or Foundation
   projects.
-* Oversight over communication about the technical development processes
-  of the project, releases and release announcements, technical documentation,
-  contributor onboarding and conduct, project governance, and technical
-  direction.
+* Establishing guidelines for communication by project contributors about the
+  technical development processes of the project, releases and release announcements,
+  technical documentation, contributor onboarding and conduct, project governance,
+  and technical direction.
 
 The TSC will define Node.js project’s release vehicles.