Start working on README

[santib]

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[santib]

@martinjaimem WDYT about merging this one? The README is not completed but it also makes some fixes to the gemspec and to class names

[martinjaimem]

I think this PR adds value as it is so I would merge it 👍 .

The only thing I'm not quite convinced about is just the first sentence:

AR2DTO (ActiveRecord to DTO, pronounced R2-D2 or Artoo-Detoo) is a gem that lets

As maybe it says more of what I want to given that I am a new user and just want to know what it is about. Having said that, I'm okay with it as it is now 👍

[santib]

I think this PR adds value as it is so I would merge it 👍 .

The only thing I'm not quite convinced about is just the first sentence:

AR2DTO (ActiveRecord to DTO, pronounced R2-D2 or Artoo-Detoo) is a gem that lets

As maybe it says more of what I want to given that I am a new user and just want to know what it is about. Having said that, I'm okay with it as it is now 👍

ok, I wanted to help people read the acronym out loud easily, but I'm ok if you want to make any change to it. I'm going to merge it, but feel free to open a PR with your suggestion