Readme is confusing for people landing "blind" on the repo

[jpretori]

Describe the bug
For someone who ends up at the repo without thinking of DND (such as following a link from a release announcement email), the readme file is a bit confusing at first until it mentions DND / TTRPG about halfway down the first screenful of text.

To Reproduce
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Expected behavior
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Screenshots
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MapTool Info
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Desktop (please complete the following information):
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Additional context
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