Add several spelling corrections (#1318)

* Add several spelling corrections

* Added variations typos on 'promise'

* Add variation typos on 'functional'

* Add variation typos on 'publish'

* Add dil(l)emas->dilemmas

* Add udpatable->updatable

* Add variation typos on 'shop'

* Add variation typos on 'please'

* Add several spelling corrections

* Add variation typos on 'mention'