message: kx122: Note return method change in apichanges.md
  Updated the API documentation with changes to the kx122.  Removed a few
  extra EOL spaces.
diff: @@ -4,6 +4,11 @@ API Changes {#apichanges}
  Here's a list of other API changes made to the library that break source/binary
  compatibility between releases:
  +# vNext
  + * The interface of **kx122** has been modified to return values instead of
  + receiving pointers. This applies to member functions: getWhoAmI,
  + getInterruptSource, getBufferStatus, getRawBufferSamples, and getBufferSamples.
  +
  # v1.6.0
  * Several C libraries had their init function pin type modified from uint8_t
  