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README.md

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 # c_bitfields_integer_promotion
 Little experiment to check how integer promotion affects bitfields
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+The interest in this came after the discussion at https://lore.kernel.org/all/[email protected]/t/#u
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+## A bunch of related links
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+https://gcc.gnu.org/onlinedocs/gcc/Structures-unions-enumerations-and-bit-fields-implementation.html
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+https://stackoverflow.com/questions/2647320/struct-bitfield-max-size-c99-c
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+https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Bit-Fields
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+https://archive.org/details/the-ansi-c-programming-language-by-brian-w.-kernighan-dennis-m.-ritchie.org/page/132/mode/2up
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+https://stackoverflow.com/questions/32529080/should-bit-fields-less-than-int-in-size-be-the-subject-of-integral-promotion
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+https://stackoverflow.com/questions/46073295/implicit-type-promotion-rules