cmake: Install doc files

Author: p12tic

CMakeLists.txt

@@ -48,6 +48,12 @@ install(FILES
     DESTINATION "${SIMDPP_PKGCONFIGDIR}"
 )
 
+install(FILES
+    "${CMAKE_CURRENT_SOURCE_DIR}/README.md"
+    "${CMAKE_CURRENT_SOURCE_DIR}/CONTRIBUTING.md"
+    "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE_1_0.txt"
+    DESTINATION "${SIMDPP_DOCDIR}"
+)
 
 enable_testing()