commit f221cde61a223492d6d80503e4d47ed5f1ac3036
Author: Levi Pearson <levipearson@gmail.com>
Date:   Mon Mar 18 17:57:54 2019 +0000

    Update page 'Notes'

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+## Crates to consider using
+
+These are all lightweight, `no-std` crates that provide useful functionality:
+
++ [bit_field]:(https://github.com/phil-opp/rust-bit-field): Fields in fixed-width types.
++ [ux]:(https://github.com/kjetilkjeka/uX): Integer types of non-standard width.
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