Fix global.json creation command

[michal2612]

Currently line that adds additional JSON to global.json fails GitHub workflow with:

Invalid workflow file: .github/workflows/build.yaml#L146
You have an error in your yaml syntax on line 146

Copilot explanation:

YAML Parsing and Special Characters
Single-line syntax: When you use run: followed by content on the same line, YAML parses it as a plain scalar. The > character in your command is interpreted as part of the YAML syntax (specifically, a folded scalar indicator) rather than a shell redirection operator.
Multi-line block scalar (|): The pipe | tells YAML to treat everything that follows as a literal block scalar, preserving newlines and special characters exactly as written. The > is now correctly interpreted by the shell as a redirection operator.

[Copilot]

Pull request overview

This PR fixes a YAML syntax error in the GitHub workflow example documentation. The issue occurred because the shell redirection operator > was being misinterpreted by YAML as a folded scalar indicator when used in a single-line run: command.

Changes:

• Updated the "Create temporary global.json" step in the README.md example to use multi-line block scalar syntax (run: |) instead of single-line syntax

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