README: fix spelling error and remove outdate ty
README: fix spelling error and remove outdate ty

- Fix ane to and spelling error
- Lots of people are involved in the spec so the thank you is no longer needed. But thanks will remain in git forever :)
dgonyeo/spec,appc/spec,apcera/appc-spec,dustymabe/spec,jonboulle/spec,zenlinTechnofreak/spec,krnowak/appc-spec,squeed/spec,marineam/spec,craimbert/spec,iaguis/appc-spec,dustymabe/spec,jonboulle/spec,apcera/appc-spec,alban/appc-spec,zenlinTechnofreak/spec,craimbert/spec,3ofcoins/appc-spec,appc/spec,ChengTiesheng/spec,dgonyeo/spec,stufflebear/spec,stufflebear/spec,tklauser/spec,iaguis/appc-spec,appc/spec,squeed/spec,craimbert/spec,marineam/spec,krnowak/appc-spec,ChengTiesheng/spec,tklauser/spec,iaguis/appc-spec,endocode/appc-spec,endocode/appc-spec,krnowak/appc-spec,ChengTiesheng/spec,zenlinTechnofreak/spec,yifan-gu/spec,yifan-gu/spec,dgonyeo/spec,3ofcoins/appc-spec,yifan-gu/spec,stufflebear/spec,alban/appc-spec,alban/appc-spec,endocode/appc-spec,dustymabe/spec,3ofcoins/appc-spec,tklauser/spec,apcera/appc-spec,marineam/spec,jonboulle/spec,squeed/spec