readme.md in adiwg-mdtranslator-2.0.0rc9

- old
+ new

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 ## sbJson
 
 ### Supported versions
 
-> 0.0.x
+> 0.0.x (sbJSON is not currently versioned)
 
 ### Writer for ScienceBase JSON metadata format (sbJSON)
 
 The ScienceBase Item core is based on the Dublin Core Metadata 
 Element Set but also includes other elements that may or may not 
@@ -15,5 +15,12 @@
 practices in describing a wide array of scientific data and 
 information assets important to science teams using ScienceBase.
 
 The sbJSON format is fully documented on 
 the [ScienceBase Confluence page](https://my.usgs.gov/confluence/display/sciencebase/ScienceBase+Information+Model).
+
+The U.S. Geological Survey (USGS) ScienceBase Catalog contains 
+metadata about digital and non-digital scientific data assets. 
+The ScienceBase Catalog provides the central information about 
+everything in ScienceBase using a flexible information model 
+based on the simple metadata elements of the Dublin Core Metadata 
+Element Set.