Add _canShowMarking to documentation

README.md

@@ -55,6 +55,8 @@ guide the learner’s interaction with the component.
 
 **_canShowModelAnswer** (boolean): Setting this to `false` prevents the [**_showCorrectAnswer** button](https://github.com/adaptlearning/adapt_framework/wiki/Core-Buttons) from being displayed. The default is `true`.
 
+**_canShowMarking** (boolean): Setting this to `false` prevents ticks and crosses being displayed on question completion. The default is `true`.
+
 **_recordInteraction** (boolean) Determines whether or not the learner's answers will be recorded to the LMS via cmi.interactions. Default is `true`. For further information, see the entry for `_shouldRecordInteractions` in the README for [adapt-contrib-spoor](https://github.com/adaptlearning/adapt-contrib-spoor).
 
 **_items** (array): Each *item* represents one choice for the multiple choice question and contains values for **text**, **_shouldBeSelected**, and **feedback**.

example.json

@@ -11,6 +11,7 @@
   "_isRandom":false,
   "_selectable":1,
   "_canShowModelAnswer": true,
+  "_canShowMarking": true,
   "_recordInteraction":true,
   "title": "MCQ",
   "displayTitle": "MCQ",

properties.schema

@@ -97,6 +97,14 @@
       "validators": [],
       "help": "Select 'true' to allow the user to view feedback on their answer"
     },
+    "_canShowMarking": {
+      "type": "boolean",
+      "default": true,
+      "title": "Display Marking",
+      "inputType": { "type": "Boolean", "options": [ true, false ] },
+      "validators": [],
+      "help": "Select 'true' to display ticks and crosses on question completion"
+    },
     "_shouldDisplayAttempts": {
       "type":"boolean",
       "required":false,