Document more preferred spec styles

[pbrisbin]

No description provided.

[wfleming]

I actually prefer the opposite style: I do not like Ruby's inconsistency around parens and prefer to always have parens for method calls (with grumpy exceptions made for some cases like template helpers/macro-y things like attr_reader). My personal reasoning is similar to why we always do , after the last arg for multi-line formatting: the diff tends to be cleaner when it changes, and you're less likely to accidentally break something just because you forgot to add parens.

But I will defer if there's a general preference for this.

[pbrisbin]

Slack poll: https://codeclimate.slack.com/archives/dev/p1486663111011158

So far expect(x).to eq(y) is winning.