Update schema definition (#1107)

docs/vcpkg-schema-definitions.schema.json

@@ -295,6 +295,9 @@
         },
         "supports": {
           "$ref": "#/definitions/platform-expression"
+        },
+        "license": {
+          "$ref": "#/definitions/license"
         }
       },
       "required": [
@@ -682,6 +685,17 @@
         }
       ]
     },
+    "license": {
+      "description": "An SPDX license expression at version 3.9.",
+      "oneOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
     "maintainers": {
       "description": "An array of strings which contain the maintainers of a package",
       "$ref": "#/definitions/string-or-strings"

docs/vcpkg.schema.json

@@ -51,15 +51,7 @@
           "format": "uri"
         },
         "license": {
-          "description": "An SPDX license expression at version 3.9.",
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ]
+          "$ref": "vcpkg-schema-definitions.schema.json#/definitions/license"
         },
         "builtin-baseline": {
           "description": "A vcpkg repository commit for version control.",