fix(nwm): Update version number info

datasets/nwm-archive.yaml

@@ -1,25 +1,24 @@
 Name: NOAA National Water Model Reanalysis
 Description: |
   The NOAA National Water Model Reanalysis dataset contains output
-  from a 25-year retrospective simulation (January 1993 through
-  December 2017) of version 1.2 of the National Water Model. This
-  simulation used observed rainfall as input and ingested other
-  required meteorological input fields from a weather Reanalysis
+  from multi-decade retrospective simulations. These
+  simulations used observed rainfall as input and ingested other
+  required meteorological input fields from a weather reanalysis
   dataset. The output frequency and fields available in this
   historical NWM dataset differ from those contained in the
   real-time forecast model. One application of this dataset is
   to provide historical context to current real-time streamflow,
-  soil moisture and snowpack NWM conditions. The Reanalysis data
+  soil moisture and snowpack NWM conditions. The reanalysis data
   can be used to infer flow frequencies and perform temporal analyses
   with hourly streamflow output and 3-hourly land surface output. The
   long-term dataset can also be used in the development of end user
   applications which require a long baseline of data for system
   training or verification purposes. This dataset contains output from two
-  retrospective simulations.  A 25-year retrospective simulation using version
-  1.2 of the National Water Model (January 1993 through December 2017), and a
-  26-year retrospective simulation using version 2.0 of the National Water Model
-  (January 1993 through December 2018). Version 2.0 of the National Water Model
-  was implemented into operations with the 12UTC run on June 19, 2019.
+  retrospective simulations.  Currently there are two versions of the dataset:
+  A 25-year (January 1993 through December 2017) retrospective simulation using
+  version 1.2 of the National Water Model, and a 26-year (January 1993 through
+   December 2018) retrospective simulation using version 2.0
+   of the National Water Model.
 Documentation: https://docs.opendata.aws/nwm-archive/readme.html
 Contact: |
   For questions regarding data content or quality, go [here](http://water.noaa.gov/about/nwm).
@@ -42,7 +41,7 @@ Resources:
     ARN: arn:aws:s3:::noaa-nwm-retro-v2.0-pds
     Region: us-east-1
     Type: S3 Bucket
-  - Description: The complete archive of NWM data.
+  - Description: The complete archive of NWM data version 1.2.
     ARN: arn:aws:s3:::nwm-archive
     Region: us-east-1
     Type: S3 Bucket