Update introduction-to-smart-contracts.rst

Fixed a typo
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hactrox 2020-08-05 12:14:51 +08:00 committed by GitHub
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@ -37,7 +37,7 @@ GPL version 3.0. Machine-readable license specifiers are important
in a setting where publishing the source code is the default.
The next line specifies that the source code is written for
Solidity version 0.4.16, or a newer version of the language up to, but not including version 0.7.0.
Solidity version 0.4.16, or a newer version of the language up to, but not including version 0.8.0.
This is to ensure that the contract is not compilable with a new (breaking) compiler version, where it could behave differently.
:ref:`Pragmas<pragma>` are common instructions for compilers about how to treat the
source code (e.g. `pragma once <https://en.wikipedia.org/wiki/Pragma_once>`_).