modified README.md to include examples of other sources
modified README.md to include examples of other sources

mchavarriagam/csvlint.rb,kickserv/csvlint.rb,strategicdata/csvlint.rb,nickzoic/csvlint.rb,theodi/csvlint.rb,strategicdata/csvlint.rb,ResultadosDigitais/csvlint.rb,jpmckinney/csvlint.rb