fix Yesod book name
fix Yesod book name

bitemyapp/commercialhaskell.com,kxxoling/hl,erantapaa/hl,imalsogreg/hl,gbaz/hl,erantapaa/hl,josefs/hl,haskell-lang/haskell-lang,imalsogreg/hl,snoyberg/hl,commercialhaskell/commercialhaskell.com,gbaz/hl,haskell-infra/hl,snoyberg/hl,josefs/hl,bitemyapp/commercialhaskell.com,snoyberg/hl,imalsogreg/hl,erantapaa/hl,commercialhaskell/commercialhaskell.com,haskell-lang/haskell-lang,haskell-lang/haskell-lang,kxxoling/hl,commercialhaskell/commercialhaskell.com,bitemyapp/commercialhaskell.com,kxxoling/hl,haskell-infra/hl,gbaz/hl,haskell-infra/hl,josefs/hl