Update archaeological_site.json - Added terms (#2158)

Author: danieldegroot2

data/presets/historic/archaeological_site.json

@@ -16,6 +16,14 @@
         "vertex",
         "area"
     ],
+    "terms": [
+        "archaeology",
+        "cropmark",
+        "crop mark",
+        "dig",
+        "excavation",
+        "remains"
+    ],
     "tags": {
         "historic": "archaeological_site"
     },