Add custom hooks

docs/part/part.md

@@ -4,6 +4,8 @@ title: Parts
 
 ## Part
 
+<b>config.site_url:</b> {{ config.site_url }}
+
 The *Part* is the core element of the InvenTree ecosystem. A Part object is the archetype of any stock item in your inventory. Parts are arranged in heirarchical categories which are used to organise and filter parts by function.
 
 ## Part Category