schema fixes

Author: smohiudd

README.md

@@ -143,7 +143,7 @@ Links to a [ArcGIS FeatureServer](https://developers.arcgis.com/rest/services-re
 
 | Field Name      | Type                 | Description |
 | --------------- | -------------------- | ----------- |
-| rel             | string               | **REQUIRED**. Must be set to `featureserver`. |
+| rel             | string               | **REQUIRED**. Must be set to `arcgis-featureserver`. |
 | href            | string               | **REQUIRED**. Link to a FeatureServer service. Usually has the following form `https://<root>/<serviceName>/FeatureServer` |
 | type            | string               | Recommended to be set to `application/json` |
 | featureserver:layers  | Map<string, string> | The layers included in the service. The key should be used as the `LayerId` when querying the service. For example: `https://<root>/<serviceName>/FeatureServer/<layerId>/query` |

examples/collection.json

@@ -98,7 +98,7 @@
     },
     {
       "href": "https://service.arcgis.com/arcgis/rest/datast/FeatureServer",
-      "rel": "featureserver",
+      "rel": "arcgis-featureserver",
       "title": "ArcGIS FeatureServer",
       "type": "application/json",
       "featureserver:layers": {

json-schema/schema.json

@@ -171,21 +171,17 @@
             "if": {
               "properties": {
                 "rel": {
-                  "const": "featureserver"
+                  "const": "arcgis-featureserver"
                 }
               }
             },
             "then": {
               "properties": {
-                "pmtiles:layers": {
+                "featureserver:layers": {
                   "type": "object",
-                  "items": {
+                  "additionalProperties": {
                     "type": "string",
-                    "minItems": 1,
-                    "items": {
-                      "type": "string",
-                      "minLength": 1
-                    }
+                    "minLength": 1
                   }
                 }
               }