more descriptive documentation in example
I wasn't sure what that parameter was at first glance
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@ -147,6 +147,7 @@ You can also get a string representation (serialize):
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std::string s = j.dump(); // {\"happy\":true,\"pi\":3.141}
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// serialization with pretty printing
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// pass in the amount of spaces to indent
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std::cout << j.dump(4) << std::endl;
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// {
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// "happy": true,
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