Update makefile and project file

Makefile

-all:
+all: build
+
+build:
 	cabal build
 
+install:
+	cabal install
+
 clean:
 	cabal clean

peregrine.cabal

@@ -6,7 +6,7 @@ description:
     for the class WS3 of well-specified strongly-silent protocols
     using SMT solvers such as Z3, Yices or CVC4.
 license:             GPL-3
-license-file:        LICENSE
+license-file:        LICENSE.md
 author:              Philipp Meyer
 maintainer:          meyerphi@in.tum.de
 category:            Formal Methods