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added notes for rspec on os x
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my mistake, the text suggests using the spec/ dir
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grammar error on pg 111
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grammar pg 112
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missing <p> tag
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fixed code error on page 123
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added alternative syntax
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that wasn't an error actually
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inconsistencies
merged upstream
removed merge syntax missed
error on pg 176
Merge pull request #3 from morenoh149/patch-1

Patch 1