Update pixad.md

ads/vendors/pixad.md

@@ -5,16 +5,41 @@
 ### Basic
 
 ```html
-  <amp-ad 
-    type="pixad" 
-    width="300" 
+  <amp-ad
+    type="pixad"
+    width="300"
     height="250"
     data-ad-type-id="standard"
-    data-ad-network="px-pub-6514176248" 
+    data-ad-network="px-pub-6514176248"
     data-ad-publisher="654b7d501cd4137ca98e020d">
   </amp-ad>
 ```
 
+### Sticky Ad
+
+```html
+<amp-sticky-ad layout="nodisplay">
+  <amp-ad
+    type="pixad"
+    width="320"
+    height="100"
+    data-ad-type-id="778130932"
+    data-ad-network="px-pub-6514176248"
+    data-ad-publisher="654b7d501cd4137ca98e020d">
+  </amp-ad>
+</amp-sticky-ad>
+```
+
+Note that `<amp-sticky-ad />` component requires the following script to be included in the page:
+
+```html
+<script
+    async
+    custom-element="amp-sticky-ad"
+    src="https://cdn.ampproject.org/v0/amp-sticky-ad-1.0.js"
+></script>
+```
+
 ## Configuration
 
 For details on the configuration semantics, see [Pixad documentation](https://developer.pixad.com.tr/).