[VIDECO-7846] Added Experience Composer Insights Sample Code (#52)

* Added Experience Composer Insights Sample Code

* Updated to condense spaces, and re-clarify comment

* Update api key format

Co-authored-by: Raulkg <gaddam.rahul.kumar@gmail.com>

* Updated usage statistics

* changed description

Co-authored-by: Jeff Swartz <jeff.swartz@vonage.com>

Co-authored-by: Raulkg <gaddam.rahul.kumar@gmail.com>
Co-authored-by: Jeff Swartz <jeff.swartz@vonage.com>

README.md

@@ -341,6 +341,34 @@ input `endCursor` parameter to obtain the next page of data. For more informatio
 }
 ```
 
+### Experience Composer Usage Data
+
+#### Query to Insights API (Sample)
+
+##### This query returns the daily total minutes that [Experience Composer](https://tokbox.com/developer/guides/experience-composer) publishes to a video session (independent of an archiver or broadcast composer), Experience Composer publishes to a video session being archived, and Experience Composer publishes to a video session being sent to a live-streaming broadcast:
+
+```
+{
+  project(projectId: ${YOUR_API_KEY}) {
+    projectData(
+      start: ${moment(startDate)},
+      end: ${moment(endDate)},
+      interval: DAILY
+    ) {
+      resources {
+        intervalStart,
+        intervalEnd,
+        usage {
+          experienceComposer,
+          experienceComposerArchive,
+          experienceComposerBroadcast
+        }
+      }
+    }
+  }
+}
+```
+
 ## Development and Contributing
 
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