Generalize the content of README.md (i.e., reduce r2 emphasis)

README.md

@@ -1,8 +1,8 @@
-# ECCO v4 r2
+# ECCO version 4
 
 **Content:**
 
-This repository contains model settings ([code/](code/), [input/](input/)) and documentation ([readthedocs](http://eccov4.readthedocs.io/en/latest/)) that allow users to download, analyze, rerun, or modify the ECCO v4 r2 ocean state estimate using the [MITgcm](http://mitgcm.org/) via on-premise cluster or [Amazon Web Services' cfncluster][] (see [example_scripts/](example_scripts/)). If user support is needed, please contact <mitgcm-support@mit.edu> or <ecco-support@mit.edu>.
+This repository contains model settings ([code/](code/), [input/](input/)) and documentation ([readthedocs](http://eccov4.readthedocs.io/en/latest/)) that allow users to download, analyze, rerun, or modify ECCO version 4 ocean state estimates using the [MITgcm](http://mitgcm.org/) via on-premise cluster or via Amazon Web Services (see [example_scripts/](example_scripts/)). The master branch is based the ECCO version 4 release 2 solution (see below). If user support is needed, please contact <mitgcm-support@mit.edu> or <ecco-support@mit.edu>.
 
 
 **Citation for this repository:**
@@ -18,9 +18,9 @@ This repository contains model settings ([code/](code/), [input/](input/)) and d
 [the ECCO servers]: http://ecco-group.org/products.htm
 [direct download]: https://dspace.mit.edu/bitstream/handle/1721.1/102062/standardAnalysis.pdf
 
-**ECCO v4 r2:** 
+**ECCO version 4 release 2:** 
 
-[Estimating the Circulation and Climate of the Ocean][], version 4, release 2 (ECCO v4 r2) is an ocean state estimate and solution of the [MIT general circulation model][] that covers the period from 1992 to 2011 (Forget et al., 2016). It is a minor update of the original ECCO v4 solution (Forget et al., 2015) that benefits from a few additional corrections listed in Forget et al. (2016) and is easier to analyze and re-run. Its input and output are distributed via [the ECCO servers][] and permanently archived via [the Harvard dataverse][]. They can be analyzed and manipulated using e.g. the [gcmfaces][] and [MITprof][] Matlab toolboxes.
+[Estimating the Circulation and Climate of the Ocean][] version 4 release 2 is an ocean state estimate and solution of the [MIT general circulation model][] that covers the period from 1992 to 2011 (Forget et al., 2016). It is a minor update of the original ECCO version 4 solution (Forget et al., 2015) that benefits from a few additional corrections listed in Forget et al. (2016) and is easier to analyze and re-run. Its input and output are distributed via [the ECCO servers][] and permanently archived via [the Harvard dataverse][]. They can be analyzed and manipulated using e.g. the [gcmfaces][] and [MITprof][] toolboxes.
 
 **References:**