[wip] Getting xeus-cpp deployment in readthedocs PR preview #617
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Description
Please include a summary of changes, motivation and context for this PR.
This PR is about getting the readthedocs PR preview to show a preview of the Emscripten deployment CppInterOp has. The initial commit will likely fail, but should give some useful debug information, on how the readthedocs config needs modifying.
Fixes # (issue)
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Testing
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Checklist