Fix links in deployment approaches section

Updated links for deployment approaches to include an underscore in the path.

Author: brown9804

README.md

@@ -91,8 +91,8 @@ Last updated: 2025-10-01
 
 > Each scenario includes detailed deployment guides that explain different approaches:
 
-1. [Writable Approach](./deployment-options/az-functionapps-cicd-pipeline-template-writable.yml)
-2. [Mounted Package Approach](./deployment-options/az-functionapps-cicd-pipeline-template-optimized.yml)
+1. [Writable Approach](./_deployment-options/az-functionapps-cicd-pipeline-template-writable.yml)
+2. [Mounted Package Approach](./_deployment-options/az-functionapps-cicd-pipeline-template-optimized.yml)
 
 ###  High-Decay (Writable Approach)