Add Intel to AUTHORS file

AUTHORS

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+# This is the official list of Cromwell authors for copyright purposes.
+#
+# The AUTHORS file lists the copyright holders.
+# For example, Broad Institute employees are not listed here, 
+# because Broad Institute holds the copyright.
+
+# Names should be added to this file as
+# Organization <webpage>
+# Individual Name <email address or website>
+
+# Please keep the list sorted alphabetically, companies/organizations first, individuals second.
+Broad Institute, Inc. <www.broadinstitute.org>
+Intel Corp. <www.intel.com>