docs(ins): fix typo

Author: bene2k1

pages/billing/additional-content/understanding-savings-plans.mdx

@@ -117,7 +117,7 @@ There is currently one available savings plan type: the Compute savings plan.
 The **Compute savings plan** can be used with the following resources, simultaneously and across all regions:
 
     - Instances
-      - Developement
+      - Development
       - Geneal Purpose
       - Specialized