Fix typo + add URL

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194563 91177308-0d34-0410-b5e6-96231b3b80d8
XCore target: implement exception handling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194564 91177308-0d34-0410-b5e6-96231b3b80d8