update install instructions

[juruen]

Context

Update doc on how to install and test this out in VS insiders. Show Docker option as the first choice to do so.

As variable inputs don't seem to work to introduce the token, we remove that from the README until they work.

[Copilot]

Pull Request Overview

This PR updates the install instructions in the README to include a Docker-based installation option as the primary method, while also providing steps for building the binary from the repo. Key changes include the addition of Docker image requirements and updated configuration instructions for starting VS Code Insiders.

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[Copilot]

Pull Request Overview

This PR updates the install instructions in the README to reflect the new installation options for VS Code Insiders, with a focus on the Docker image option and the removal of variable token inputs.

• Added a Docker image installation section with authentication instructions.
• Updated the build-from-repo instructions and removed the token input configuration for the server setup.

Comments suppressed due to low confidence (2)

README.md:414

• Consider aligning the server naming keys across both configuration options. For instance, using a consistent key (e.g., 'github-mcp-server') in both the Docker and binary sections may improve clarity for users.

      "github-mcp-server": {

README.md:412

• Since the previous token input configuration was removed, consider adding an inline comment to clarify that this change is intentional due to variable input limitations. This may prevent future confusion when users expect a token prompt.

    "inputs": [],

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[SamMorrowDrums]

I hope the input access is fixed soon 😅