Merge pull request #6 from cms-opendata-validation/katilp-patch-1

Update README.md

Author: katilp

README.md

@@ -1,6 +1,9 @@
 # 2010-commissioning-dimuon
                         
 Validation code for 2010 Commissioning dataset, based on dimuon mass spectrum.
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+It is based on the original code in [http://opendata.cern.ch/record/461] on the CERN Open Data portal (Geiser, Achim; Dutta, Irene; Hirvonsalo, Harri; Sheeran, Bridget; (2016). Validation code for 2010 Commissioning dataset, based on dimuon mass spectrum. CERN Open Data Portal. DOI:10.7483/OPENDATA.CMS.W26R.J96R ) and modified here for direct download from github.
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 You need to work in a Virtual Machine properly contextualized for CMS.
 Everything is available on the CERN Open Data Portal http://opendata.cern.ch/VM/CMS/2010.