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Update red.html.markdown
completed function twice example
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@ -185,17 +185,18 @@ twice: function [a [integer!] /one return: [integer!]][
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a: a * c
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either one [a + 1][a]
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]
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b: 3
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print twice b ; will output 6.
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; Import external files with #include and filenames start with a % sign
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#include %includefile.red
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; Now the functions in the included file can be used too.
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```
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## Further Reading
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The main source for information about Red is [the Red language homepage](http://www.red-lang.org).
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The main source for information about Red is the [Red language homepage](http://www.red-lang.org).
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The Red/System language specification can be found [here](http://static.red-lang.org/red-system-specs-light.html).
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