updated flux docs to address PR review

content/influxdb/v2.0/reference/flux/stdlib/built-in/transformations/aggregates/integral.md

@@ -53,6 +53,7 @@ Defaults to `""`.
 
 Use one of the following interpolation options:
 
+- _empty sting for no interpolation_
 - linear
 
 _**Data type:** String_

content/influxdb/v2.0/reference/flux/stdlib/influxdb-tasks/lastsuccess.md

@@ -26,7 +26,7 @@ _**Data type:** Time_
 
 ## Examples
 
-##### Query data since that last successful task run
+##### Query data since the last successful task run
 ```js
 import "influxdata/influxdb/tasks"
 

content/influxdb/v2.0/reference/release-notes/flux.md

@@ -28,7 +28,7 @@ InfluxDB until the next InfluxDB v2.0 release._
 - Add [BigQuery](https://cloud.google.com/bigquery) support to
   [`sql` package](/influxdb/v2.0/reference/flux/stdlib/sql/).
 - Add `TypeExpression` to `BuiltinStmt` and fix tests.
-- Time-weighted average ([`timeWeightedAvg()` function](/influxdb/v2.0/reference/flux/stdlib/built-in/transformations/aggregates/timeweightedavg/)).
+- Add time-weighted average ([`timeWeightedAvg()` function](/influxdb/v2.0/reference/flux/stdlib/built-in/transformations/aggregates/timeweightedavg/)).
 - Update [`integral()`](/influxdb/v2.0/reference/flux/stdlib/built-in/transformations/aggregates/integral/)
   with linear interpolation.
 - Make experimental tracing an attribute of the context.