fix(flux/profiler): example code fixed

Copy-pasted the example into the InfluxDB UI and it didn't work. Looks
like it was just a typo.

content/influxdb/v2.0/reference/flux/stdlib/profiler/_index.md

@@ -63,7 +63,7 @@ Use the query profiler to output statistics about query execution.
 ```js
 import "profiler"
 
-option profiler.enabledProfiles["query"]
+option profiler.enabledProfilers = ["query"]
 
 // ... Query to profile
 ```