Removed duplicate text

CommonDataModel.md documentation had duplicate text in first paragraph - modified to remove.

Author: rmcsqrd

docs/src/site/pages/netcdfJava_tutorial/overview/CommonDataModel.md

@@ -7,7 +7,7 @@ toc: false
 ---
 ## Unidiata's Common Data Model Version 4file formats
 
-Unidata’s Common Data Model (CDM) is an abstract <a href="https://en.wikipedia.org/wiki/Data_model" target="_blank">data model</a> for scientific datasets. It merges the <a href="https://www.unidata.ucar.edu/software/netcdf/" target="_blank">netCDF</a>, <a href="http://www.opendap.org" target="_blank">OPeNDAP</a>, and <a href="https://portal.hdfgroup.org/display/support/" target="_blank">HDF5</a> data models to create a common API for many types of scientific data. The NetCDF Java library is an implementation of the CDM which can read many file types. Unidata’s Common Data Model (CDM) is an abstract <a href="https://en.wikipedia.org/wiki/Data_model" target="_blank">data model</a> for scientific datasets. It merges the <a href="https://www.unidata.ucar.edu/software/netcdf/" target="_blank">netCDF</a>, <a href="http://www.opendap.org" target="_blank">OPeNDAP</a>, and <a href="https://portal.hdfgroup.org/display/support/" target="_blank">HDF5</a> data models to create a common API for many types of scientific data. The NetCDF Java library is an implementation of the CDM which can read many [file formats](file_types.html) besides netCDF. We call these CDM files, a shorthand for files that can be read by the NetCDF Java library and accessed through the CDM data model.
+Unidata’s Common Data Model (CDM) is an abstract <a href="https://en.wikipedia.org/wiki/Data_model" target="_blank">data model</a> for scientific datasets. It merges the <a href="https://www.unidata.ucar.edu/software/netcdf/" target="_blank">netCDF</a>, <a href="http://www.opendap.org" target="_blank">OPeNDAP</a>, and <a href="https://portal.hdfgroup.org/display/support/" target="_blank">HDF5</a> data models to create a common API for many types of scientific data. The NetCDF Java library is an implementation of the CDM which can read many [file formats](file_types.html) besides netCDF. We call these CDM files, a shorthand for files that can be read by the NetCDF Java library and accessed through the CDM data model.
 
 The Common Data Model has three layers, which build on top of each other to add successively richer semantics: