Update billing-concepts-terms.mdx

Author: clairekinde11

src/content/docs/billing/about-billing/billing-concepts-terms.mdx

@@ -2,15 +2,13 @@
 page_id: 9d1daf85-1a2c-4cc5-879a-230c950bed12
 title: Billing concepts & terms
 sidebar:
-  order: 
+  order: 3
 relatedArticles:
   - 100f75f1-a0a4-459f-874f-da127f2d0615
   - bd6757e3-81d5-48d6-89c8-dd4c222ac647
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-
-
-Billing is the collective term we use to refer to the broad function of plans, pricing, payments, etc. The core concepts that you will come across in Kinde and in the docs might not be familiar to you. 
+Billing is the collective term we use to refer to the broad function of plans, pricing, payments, etc. The billing concepts that you will come across in Kinde and in the docs might not be familiar to you. 
 
 ## Key concepts