Add cache_bust param

Author: jasonvarga

content/collections/tags/theme-asset.md

@@ -12,6 +12,12 @@ parameters:
     description: >
       The path to the file, relative to the
       theme directory.
+  -
+    name: cache_bust
+    type: 'boolean *false*'
+    description: >
+      Setting this to `true` will add the timestamp of the asset to the end of
+      the URL in a `?v=` query param.
 id: de348605-5489-4282-9257-bd9ffd92438e
 ---
 ## Explicit mode {#explicit-mode}

content/collections/tags/theme-css.md

@@ -20,6 +20,13 @@ parameters:
       theme assets, setting this to `true`
       will use the manifest to output the
       filename.
+  -
+    name: cache_bust
+    type: 'boolean *false*'
+    description: >
+      Setting this to `true` will add the timestamp of the asset to the end of
+      the URL in a `?v=` query param. Use this to version files if you are
+      _not_ using Elixir.
 id: 6b5093dc-dd82-4ae2-a9ff-53d4099d11e3
 ---
 ## Example {#example}

content/collections/tags/theme-js.md

@@ -17,6 +17,13 @@ parameters:
       theme assets, setting this to `true`
       will use the manifest to output the
       filename.
+  -
+    name: cache_bust
+    type: 'boolean *false*'
+    description: >
+      Setting this to `true` will add the timestamp of the asset to the end of
+      the URL in a `?v=` query param. Use this to version files if you are
+      _not_ using Elixir.
 ---
 ## Example {#example}
 ```