Rename KorapXML to KorAP-XML coherently

Change-Id: Ifa0e0bd4853e29f0717f7fd3a3843310c4d9bd61
diff --git a/Makefile.PL b/Makefile.PL
index 797762c..370a0ae 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -7,7 +7,7 @@
 WriteMakefile(
   NAME         => 'KorAP::XML::Krill',
   AUTHOR       => 'Nils Diewald',
-  ABSTRACT     => 'Preprocess KorAP XML Documents for Krill',
+  ABSTRACT     => 'Merge KorAP-XML data and create Krill documents',
   VERSION_FROM => 'lib/KorAP/XML/Krill.pm',
   LICENSE      => 'freebsd',
   PREREQ_PM => {