docs: fix typo in 4-methods.md

rage / java-programming

https://java-programming.mooc.fi

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Closed sebilune closed 3 months ago

sebilune commented 4 months ago

Fix typo "calls a methods" to "calls a method"
Fix a typographical error and improved terminology in the description of method placement in code. Changed "inside out" to "within" for clarity, and adjusted the reference from "the main" to "main" to align with common programming language usage.