chore: update the DA overview text and feature section (#318)

Author: piyush117

ibm_catalog.json

@@ -21,7 +21,7 @@
         "infrastructure as code"
       ],
       "short_description": "Creates and configures an App Configuration service with optional integration of Cloud Logs, Monitoring and Activity Tracker Event Routing",
-      "long_description": "This deployable architecture automates the provisioning of IBM Cloud App Configuration along with initial collection to help you manage feature flags and dynamic properties at scale. It also includes support for configuration aggregators, enabling centralized monitoring and management of configurations across multiple App Configuration instances. It simplifies onboarding by preconfiguring key resources and provides support for defining context-based restrictions (CBR) to enhance security and control access based on network policies. Ideal for teams adopting feature flagging, experimentation, or remote configuration strategies in cloud-native applications, this solution accelerates setup while following IBM Cloud best practices. Refer [this](https://cloud.ibm.com/docs/app-configuration) for more information.\n\nℹ️ This Terraform-based automation is part of a broader suite of IBM-maintained Infrastructure as Code (IaC) assets, each following the naming pattern \"Cloud automation for *servicename*\" and focusing on single IBM Cloud service. These single-service deployable architectures can be used on their own to streamline and automate service deployments through an [IaC approach](https://cloud.ibm.com/docs/secure-enterprise?topic=secure-enterprise-understanding-projects), or assembled together into a broader [automated IaC stack](https://cloud.ibm.com/docs/secure-enterprise?topic=secure-enterprise-config-stack) to automate the deployment of an end-to-end solution architecture.",
+      "long_description": "This deployable architecture automates the provisioning of IBM Cloud App Configuration along with initial collection to help you manage feature flags and dynamic properties at scale. It also includes support for configuration aggregators, enabling centralized monitoring and management of configurations across multiple App Configuration instances. It simplifies onboarding by preconfiguring key resources and provides support for defining context-based restrictions (CBR) to enhance security and control access based on network policies. Ideal for teams adopting feature flagging, experimentation, or remote configuration strategies in cloud-native applications, this solution accelerates setup while following IBM Cloud best practices. Refer [this](https://cloud.ibm.com/docs/app-configuration) for more information. \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-app-configuration) and use it to extend your current architecture or create new solutions.\n\nℹ️ This Terraform-based automation is part of a broader suite of IBM-maintained Infrastructure as Code (IaC) assets, each following the naming pattern \"Cloud automation for *servicename*\" and focusing on single IBM Cloud service. These single-service deployable architectures can be used on their own to streamline and automate service deployments through an [IaC approach](https://cloud.ibm.com/docs/secure-enterprise?topic=secure-enterprise-understanding-projects), or assembled together into a broader [automated IaC stack](https://cloud.ibm.com/docs/secure-enterprise?topic=secure-enterprise-config-stack) to automate the deployment of an end-to-end solution architecture.",
       "offering_docs_url": "https://github.com/terraform-ibm-modules/terraform-ibm-app-configuration/blob/main/README.md",
       "offering_icon_url": "https://raw.githubusercontent.com/terraform-ibm-modules/terraform-ibm-app-configuration/main/images/app_config-icon.png",
       "provider_name": "IBM",
@@ -41,6 +41,10 @@
         {
           "title": "Configuration Aggregator",
           "description": "Supports creation and management of configuration [aggregator](https://cloud.ibm.com/docs/app-configuration?topic=app-configuration-ac-configuration-aggregator) to manage configurations across multiple App Configuration instances."
+        },
+        {
+          "title": "Composable and Extensible Architecture",
+          "description": "This architecture illustrates how Terraform IBM Modules(TIM) can be integrated to deliver a complete solution on IBM Cloud. Each module is a reusable, and validated component for security, compliance, and operational IBM best practices. You can deploy this architecture as-is or configure it as code by leveraging the underlying modules to fit your specific requirements. Explore the [source code and documentation](https://github.com/terraform-ibm-modules/terraform-ibm-app-configuration) to adapt, extend, or create entirely new solutions using these building blocks."
         }
       ],
       "support_details": "This product is in the community registry, as such support is handled through the originated repo. If you experience issues please open an issue in that repository [here](https://github.com/terraform-ibm-modules/terraform-ibm-app-configuration/issues). Please note this product is not supported via the IBM Cloud Support Center.",