Add README to the remote inference example app

[MMelQin]

This PR adds comprehensive documentation for the AI remote inference example application, specifically for spleen segmentation using Triton Inference Server. The README provides detailed guidance on how to use MONAI Deploy SDK with remote inference capabilities.

Adds a complete README.md file documenting the remote inference example application
Documents Triton server integration patterns and API compatibility between local and remote inference
Provides setup instructions, configuration details, and usage examples for the spleen segmentation app

[Copilot]

Pull Request Overview

This PR adds comprehensive documentation for the AI remote inference example application, specifically for spleen segmentation using Triton Inference Server. The README provides detailed guidance on how to use MONAI Deploy SDK with remote inference capabilities.

• Adds a complete README.md file documenting the remote inference example application
• Documents Triton server integration patterns and API compatibility between local and remote inference
• Provides setup instructions, configuration details, and usage examples for the spleen segmentation app

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 1 comment.

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[Copilot]

[nitpick] The sentence structure is unclear. Consider revising to: 'The path to models_client_side serves as the model path for the application, while spleen_ct is the named model folder with its name matching the model name. Therefore, the model name is intentionally omitted from the config.pbtxt file.'

Suggested change

	The path to `models_client_side` is the model path for the application while `spleen_ct` is the folder of the named model with the folder name matching the model name. The model name in the `config.pbtxt` file is therefore intentionally omitted.
	The path to `models_client_side` serves as the model path for the application, while `spleen_ct` is the named model folder with its name matching the model name. Therefore, the model name is intentionally omitted from the `config.pbtxt` file.