fix typo

Author: chrisdavidmills

api/ReportingObserver.json

@@ -180,7 +180,7 @@
                 "support": {
                   "chrome": {
                     "version_added": "145",
-                    "notes": "The `crash` reporting type can be specified in the `types` array, but crash reports are not observed by reporting observers. They can be sent to reporting endpoints."
+                    "notes": "The `crash` report type can be specified in the `types` array, but crash reports are not observed by reporting observers. They can be sent to reporting endpoints."
                   },
                   "chrome_android": "mirror",
                   "edge": "mirror",