Update README.md

README.md

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 # NCDTech — We design and research smart monitoring and control systems that grow.
 
+![NCDTech 4-layer stack](https://huggingface.co/spaces/NCDTech/README/resolve/main/assets/01_four_layer_stack.png)
+
+*(Diagrams and screens below are in Korean; they are the same figures used on our website and demo video.)*
+
 Our roots are in smart monitoring and control.
 
 With our robot simulation studio we stand on that extension line, and our AI sits on top of it.
@@ -19,6 +23,8 @@ Interpretation and judgment are left to the experts who know the system.
 
 What we build is the layer above that: self-inspection wired into every stage, and an on-premise LLM that reads those inspection records and explains them in plain conversation.
 
+![An operator conversation with the on-premise LLM, captured as a knowledge record](https://huggingface.co/spaces/NCDTech/README/resolve/main/assets/02_llm_conversation.png)
+
 Making code verify itself is nothing new.
 
 Test benches and unit tests live outside the code; self-checks live inside it: assertions, Design by Contract, and built-in self-tests (BIST/POST) are standard embedded practice.
@@ -29,16 +35,21 @@ Our technology is the wiring above that standard: the check records feed an on-p
 
 The system grows through use, but only under administrator approval: code-based verdicts are never overwritten, every approved piece of knowledge keeps its full revision history, and nothing is ever silently deleted.
 
+![The administrator approval gate: accept, reject, or revise as a new revision](https://huggingface.co/spaces/NCDTech/README/resolve/main/assets/03_admin_approval.png)
+
 We do not so much invent new capabilities as put AI, without hesitation, on top of abilities we have already verified, and make it actually run.
 
 **Current status**: first development phase complete, applied to our in-house autonomous driving simulator.
 
 Demo application in progress, with the knowledge base still growing.
 
+![The in-house simulator: a tiny neural network driving in the 3D evaluation stage](https://huggingface.co/spaces/NCDTech/README/resolve/main/assets/04_3d_driving.png)
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+![The tracked test robot the simulator reproduces, with hand-mounted ultrasonic sensors](https://huggingface.co/spaces/NCDTech/README/resolve/main/assets/05_real_robot.jpg)
 
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-### 한국어
+## 한국어
 
 **NCDTech** — 성장하는 스마트 모니터링 제어 시스템을 설계하고 연구하는 회사입니다.
 
@@ -66,3 +77,10 @@ Demo application in progress, with the knowledge base still growing.
 
 데모 적용 중이며 지식은 확장 중입니다.
 
+---
+
+Website: https://www.ncdtech.org
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+LinkedIn: https://www.linkedin.com/company/112725964
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+Dataset: [NCDTech/human-gated-qaqc-knowledge-example](https://huggingface.co/datasets/NCDTech/human-gated-qaqc-knowledge-example) · Model: [NCDTech/sim-driving-mlp-numpy](https://huggingface.co/NCDTech/sim-driving-mlp-numpy)