Update ink_player.gd

[GreenCloversGames]

Replace "_create_story" and "_finialise_story_creation" with call_deferred versions, stopping errors from calling "create_story" method.

Checklist for this pull request

• [x ] I have read the guidelines for contributing.
• [ x] I have checked that my code additions did not fail tests.

Description

Small fix for issue #58 regarding HTML exports.

[ephread]

Thanks for the PR! I based the fix on it (aeeceba) except I wrapped both function calls into the same deferred call.