Update TODO.md

Import/TODO.md

@@ -1,18 +1,18 @@
 # TODO
 
 * Workflow
-    * enum:
+    * **enum**:
         * Support comparison, `|` and `&` operators for Enum.
         * When there is an determined expression expected enum type, enum item names are legal expressions.
         * So that `(Item1 | Item2 | Item3)::Enum` is a legal expression.
-    * struct:
+    * **struct**:
         * `{fontFamily:'Segoe UI' size:10}::FontProperties`, giving a type is not always necessary.
-    * Workflow to C++ code generation with hint.
+    * **Workflow to C++ code generation with hint**.
         * Only `Enumerable<T>^` and `ObservableList^` in containers are allowed in script.
         * All native classes report real C++ collection type when using collection objects.
         * C++ code generator reports errors when any script does not satisfy these rules.
-    * Low Priority:
-        * async, delay, yield (provider written in C++). **low priority**
+    * **Low Priority**:
+        * async, delay, yield (provider written in C++).
 * GacUI Resource
     * InheritableCustomWindow
     * InheritableCustomControl
@@ -23,13 +23,13 @@
     * Pure C++ Code Generation
     * Visual State, State Machine, Animation
     * Special grammar kicks in when assigning a text literal to non-serializable struct or enum types
-        * serializable types: always use ISerializableType.
-        * enum: `Item1 | Item2 | Item3`, the same as previous. (<text>)::<type>
-        * struct: `fontFamily:'Segoe UI' size:10`, the same as previous, but no more {} escaping. {<text>}::<type>
-        * Remove -format binding, use -bind/-eval instead:
+        * **serializable types**: always use ISerializableType.
+        * **enum**: `Item1 | Item2 | Item3`, the same as previous. (<text>)::<type>
+        * **struct**: `fontFamily:'Segoe UI' size:10`, the same as previous, but no more {} escaping. {<text>}::<type>
+        * **Remove -format binding, use -bind/-eval instead**:
             * **Before**: `Font-format="fontFamily: $(textBox1.Text) size:$(textBox2.Text)"`
             * **After**: `Font-bind="{fontFamily: textBox1.Text size: (cast int textBox2.Text)}"`
-    * Low Priority:
+    * **Low Priority**:
         * ev.Event-(eval|async|delayed)
 * Core
     * Make ItemSource from constructor argument to property