Update README.md for MONAI Deploy site

Signed-off-by: Gigon Bae <gbae@nvidia.com>

Author: gigony

README.md

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 <img src="https://raw.githubusercontent.com/Project-MONAI/MONAI/dev/docs/images/MONAI-logo-color.png" width="50%" alt='project-monai'>
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+💡 If you want to know more about MONAI Deploy WG vision, overall structure, and guidelines, please read <https://github.com/Project-MONAI/monai-deploy> first.
+
 # MONAI Deploy App SDK
 
-MONAI Deploy App SDK offers a framework and associated tools to design, verify and analyze the performance of AI-driven applications in the healthcare domain.
+MONAI Deploy App SDK offers a framework and associated tools to design, develop and verify AI-driven applications in the healthcare imaging domain.
 
 ## Features
 
-> _The codebase is currently under active development._
-
-- Pythonic Framework for app development
-- A mechanism to locally run an app via App Runner
-- A lightweight app analytics module
-- A lightweight 2D/3D visualization module
-- A development console
-- A set of sample applications
-- API documentation & User's Guide
+- Build medical imaging inference applications using a flexible, extensible & usable Pythonic API
+- Easy management of inference applications via programmable Directed Acyclic Graphs (DAGs)
+- Built-in operators to load DICOM data to be ingested in an inference app
+- Out-of-the-box support for in-proc PyTorch based inference
+- Easy incorporation of MONAI based pre and post transformations in the inference application
+- Package inference application with a single command into a portable MONAI Application Package
+- Locally run and debug your inference application using App Runner
 
 ## Installation
 
@@ -68,6 +68,8 @@ For guidance on making a contribution to MONAI Deploy App SDK, see the [contribu
 
 ## Community
 
+To participate in the MONAI Deploy WG, please review <https://github.com/Project-MONAI/MONAI/wiki/Deploy-Working-Group>.
+
 Join the conversation on Twitter [@ProjectMONAI](https://twitter.com/ProjectMONAI) or join our [Slack channel](https://forms.gle/QTxJq3hFictp31UM9).
 
 Ask and answer questions over on [MONAI Deploy App SDK's GitHub Discussions tab](https://github.com/Project-MONAI/monai-deploy-app-sdk/discussions).