chore: update the DA overview text and feature section (#338)

Author: piyush117

ibm_catalog.json

@@ -13,7 +13,7 @@
       ],
       "keywords": [],
       "short_description": "Configures provided toolchain infrastructure and uploads PDF files to a Watson project, part of a larger automation workflow.",
-      "long_description": "This automation is a dependent component of a more comprehensive workflow, which can be found in the [Retrieval Augmented Generation Pattern](https://cloud.ibm.com/catalog/7a4d68b4-cf8b-40cd-a3d1-f49aff526eb3/architecture/Retrieval_Augmented_Generation_Pattern-5fdd0045-30fc-4013-a8bc-6db9d5447a52-global) tile. \n\nFor a complete understanding of the automation process, please refer to the full workflow located in the [Retrieval Augmented Generation Pattern](https://cloud.ibm.com/catalog/7a4d68b4-cf8b-40cd-a3d1-f49aff526eb3/architecture/Retrieval_Augmented_Generation_Pattern-5fdd0045-30fc-4013-a8bc-6db9d5447a52-global) tile, where you can find detailed information on the entire automation sequence.",
+      "long_description": "This automation is a dependent component of a more comprehensive workflow, which can be found in the [Retrieval Augmented Generation Pattern](https://cloud.ibm.com/catalog/7a4d68b4-cf8b-40cd-a3d1-f49aff526eb3/architecture/Retrieval_Augmented_Generation_Pattern-5fdd0045-30fc-4013-a8bc-6db9d5447a52-global) tile.  \n\nLeverage [Terraform IBM Modules](https://github.com/terraform-ibm-modules) to shape and scale your solutions. You can integrate Terraform IBM Modules (TIM) to extend functionality and design a solution tailored to your environment and operations needs. These modules offer reusable, customizable elements that follow IBM Cloud's recommended practices. You can access the [source code and documentation](https://github.com/terraform-ibm-modules/terraform-ibm-rag-sample-da) and use it to extend your current architecture or create new solutions.\n\nFor a complete understanding of the automation process, please refer to the full workflow located in the [Retrieval Augmented Generation Pattern](https://cloud.ibm.com/catalog/7a4d68b4-cf8b-40cd-a3d1-f49aff526eb3/architecture/Retrieval_Augmented_Generation_Pattern-5fdd0045-30fc-4013-a8bc-6db9d5447a52-global) tile, where you can find detailed information on the entire automation sequence.",
       "provider_name": "IBM",
       "flavors": [
         {