doc spec added

package.json

@@ -13,6 +13,10 @@
         "kics2": ">= 0.5.0"
     },
     "exportedModules": [ "OptParse" ],
+    "documentation": {
+        "src-dir": ".",
+        "main": "README.md"
+    },
     "source": {
         "git": "https://git.ps.informatik.uni-kiel.de/curry-packages/opt-parse.git",
         "tag": "$version"