Adjusting IoT connector TOC.

Author: msjasteppe

articles/healthcare-apis/iot/toc.yml

@@ -48,9 +48,9 @@ items:
       href: how-to-use-custom-functions.md  
     - name: Use FHIR destination mappings
       href: how-to-use-fhir-mappings.md
-    - name: Display Metrics
+    - name: Display metrics
       href: how-to-display-metrics.md
-    - name: Enable diagnostics logging
+    - name: Enable metrics export
       href: iot-metrics-diagnostics-export.md
     - name: Create copies of mappings
       href: how-to-create-mappings-copies.md