Specs: Fix more markdown errors

sky/specs/style.md

 Sky Style Language
 ==================
 
 Planed changes
 --------------
 
 Add //-to-end-of-line comments to be consistent with the script
 language.
 
 
@@ skipping 516 matching lines @@
 In the constructors for the default elements, they add to themselves
 StyleDeclaration objects as follows:
 
 * ``import``
 * ``template``
 * ``style``
 * ``script``
 * ``content``
 * ``title``
   These all add to themselves the same declaration with value:
-  ``{ display: { value: null } }``
+  ```{ display: { value: null } }```
 
 * ``img``
   This adds to itself the declaration with value:
-  ``{ display: { value: sky.ImageElementLayoutManager } }``
+  ```{ display: { value: sky.ImageElementLayoutManager } }```
 
 * ``span``
 * ``a``
   These all add to themselves the same declaration with value:
-  ``{ display: { value: sky.InlineLayoutManager } }``
+  ```{ display: { value: sky.InlineLayoutManager } }```
 
 * ``iframe``
   This adds to itself the declaration with value:
-  ``{ display: { value: sky.IFrameElementLayoutManager } }``
+  ```{ display: { value: sky.IFrameElementLayoutManager } }```
 
 * ``t``
   This adds to itself the declaration with value:
-  ``{ display: { value: sky.ParagraphLayoutManager } }``
+  ```{ display: { value: sky.ParagraphLayoutManager } }```
 
 * ``error``
   This adds to itself the declaration with value:
-  ``{ display: { value: sky.ErrorLayoutManager } }``
+  ```{ display: { value: sky.ErrorLayoutManager } }```
 
 The ``div`` element doesn't have any default styles.
 
 These declarations are all shared between all the elements (so e.g. if
 you reach in and change the declaration that was added to a ``title``
 element, you're going to change the styles of all the other
 default-hidden elements).