update URL in LaTeX docs

docs/iris.tex

@@ -28,7 +28,7 @@
 \begin{abstract}
 This document describes formally the Iris program logic.
 Every result in this document has been fully verified in Coq.
-The latest versions of this document and the Coq formalization can be found in the git repository at \url{https://gitlab.mpi-sws.org/FP/iris-coq/}.
+The latest versions of this document and the Coq formalization can be found in the git repository at \url{https://gitlab.mpi-sws.org/iris/iris}.
 For further information, visit the Iris project website at \url{http://plv.mpi-sws.org/iris/}.
 \end{abstract}