Elliott Indiran

"Ener" --> "Enter"

Improve automatic documentation generation

1

This PR is intended to address #111 as well as generally improving automatic generation of the Read the Docs HTML via Sphinx.

Add i2c_rd and i2c_wr methods to SMBus class

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Based on (abandoned?) PR from @fgervais See: https://github.com/kplindegaard/smbus2/pull/23