fixing yielding "HELLO" in pkgs.lib

[MrMarvel]

#25

[Copilot]

Pull request overview

Updates the pkgs.lib README example so that evaluating it returns "HELLO" (rather than yielding a lambda), aligning the documentation with the behavior described in issue #25.

Changes:

• Wrap the example file-lambda in a function application ((...) {}) so it evaluates to a concrete value.

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[MrMarvel]

I have added comment

[Copilot]

Pull request overview

Updates the pkgs.lib README example so it evaluates to "HELLO" (instead of yielding a lambda) by explicitly applying the top-level function.

Changes:

• Wrap the example lambda in parentheses and apply it to {} so it evaluates immediately.
• Add an explanatory comment about why the parentheses/application are needed.

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[Copilot]

Pull request overview

Updates the pkgs.lib README example to correctly evaluate strings.toUpper "hello" by explicitly applying the top-level function to an argument set, matching the behavior described in Issue #25.

Changes:

• Wraps the example lambda in parentheses and applies it to {} so it evaluates to "HELLO".
• Adds an explanatory note about the need for parentheses when applying the function.

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[Copilot]

Pull request overview

Updates the pkgs.lib README example to demonstrate evaluating the expression (instead of returning a lambda), aligning the documentation with the behavior described in Issue #25.

Changes:

• Wrap the Nix lambda in parentheses and apply it to {} so the snippet evaluates to "HELLO".
• Add an inline comment explaining why parentheses are required in this case.

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[MrMarvel]

All seems ok
@tazjin