Update topic order in the introduction

Author: shivansh

fern/docs/pages/customization.mdx

@@ -6,17 +6,16 @@ This section provides an overview of the customization framework and walks you t
 process of tracking bugs in your organization. By the end of this section, you'll be able
 to:
 1. Customize DevRev objects such as _issue_ and _ticket_ by adding custom fields.
+1. Override default field settings of DevRev objects.
 1. Create custom stages and stage transition diagrams for your objects.
 1. Create dependent fields for your objects.
-1. Override default field settings of DevRev objects.
 
 ## Concepts
 
 ### DevRev object
 
-DevRev objects are the core entities in DevRev that represent real-world items such as
-issues, tickets, and incidents. Each object type has a set of fields that describe the
-object. The keyword `leaf_type` refers to a DevRev object type.
+DevRev objects are the core entities that represent real-world items such as issues,
+tickets, and incidents. Each object type has a set of fields that describe the object.
 
 <Callout intent="tip">
 When you encounter `leaf_type` in the documentation or API, it refers to the type of DevRev