Font style naming bug

Author: graham-trott

presenter/demo.json

@@ -8,7 +8,7 @@
         "background": "black"
     },
     "defaults": {
-        "fontFace": "Times New Roman,serif",
+        "fontFamily": "Times New Roman,serif",
         "fontSize": 40,
         "fontWeight": "normal",
         "fontStyle": "normal",
@@ -52,7 +52,7 @@
                 "blockHeight": 800,
                 "blockPaddingLeft": 80,
                 "blockPaddingTop": 40,
-                "fontFace": "Helvetica,sans-serif",
+                "fontFamily": "Helvetica,sans-serif",
                 "fontColor": "#00ffff"
             }
         }

presenter/jsonPresenter.js

@@ -143,7 +143,7 @@ const JSON_Presenter = {
             element.appendChild(inner);
             element.inner = inner;
             const text = document.createElement(`div`);
-            text.style[`font-face`] = properties.fontFace;
+            text.style[`font-family`] = properties.fontFamily;
             text.style[`font-size`] = `${properties.fontSize * h / 1000}px`;
             text.style[`font-weight`] = properties.fontWeight;
             text.style[`font-style`] = properties.fontStyle;