added CLI to the title

Author: mairaw

docs/toc.md

@@ -161,7 +161,7 @@
 ### [.NET Core Support](core/versions/lts-current.md)
 ### [🔧 Servicing](core/versions/servicing.md)
 ## [Runtime IDentifier catalog](core/rid-catalog.md)
-## [.NET Core Tools](core/tools/index.md)
+## [.NET Core CLI Tools](core/tools/index.md)
 ### [Telemetry](core/tools/telemetry.md)
 ### [Extensibility Model](core/tools/extensibility.md)
 ### [Continuous Integration](core/tools/using-ci-with-cli.md)