add category and minor improvements

Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>

elm.json

@@ -13,6 +13,7 @@
             "elm/html": "1.0.0",
             "elm/http": "2.0.0",
             "elm/json": "1.1.3",
+            "elm/parser": "1.1.0",
             "elm/svg": "1.0.1",
             "elm/time": "1.0.0",
             "elm/url": "1.0.0"
@@ -20,7 +21,6 @@
         "indirect": {
             "elm/bytes": "1.0.8",
             "elm/file": "1.0.5",
-            "elm/parser": "1.1.0",
             "elm/regex": "1.0.0",
             "elm/virtual-dom": "1.0.3"
         }
@@ -29,4 +29,4 @@
         "direct": {},
         "indirect": {}
     }
-}
+}