Added Ambush board game

[SusheelThapa]

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[SusheelThapa]

@edm00se Can you please describe the error in merging?

[edm00se]

It looks like the awesome-lint is citing the trailing ! as failing a requirement of no trailing punctuation (it's ultimately a markdown / html header in the end). I believe we can get around this with a comment to flag the rule off for that line, as the game is titled as such. I'll have another look in a bit when I have a few minutes.

[edm00se]

Thanks for contributing!

I've applied a fix for the linter and will look at the other PRs tonight.

refs: #269