minor cosmetic issue

[herrmadbeef]

on the file https://github.com/acantril/learn-cantrill-io-labs/blob/master/aws-codepipeline-catpipeline/02_LABINSTRUCTIONS/STAGE2-CODEBUILD.md

git add -A .
git commit -m “add buildspec.yml”
git push 

you re using Curly “ it should be straight "