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Update ch01-02-hello-world.md #2386

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Jun 27, 2020
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Update ch01-02-hello-world.md #2386

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5 changes: 3 additions & 2 deletions src/ch01-02-hello-world.md
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Expand Up @@ -119,8 +119,9 @@ Inside the `main` function is the following code:
```

This line does all the work in this little program: it prints text to the
screen. There are four important details to notice here. First, Rust style is
to indent with four spaces, not a tab.
screen. There are four important details to notice here.

First, Rust style is to indent with four spaces, not a tab.

Second, `println!` calls a Rust macro. If it called a function instead, it
would be entered as `println` (without the `!`). We’ll discuss Rust macros in
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