typo: missing word: "to" (#27079)
typo: missing word: "to" (#27079)

Change:
...a resolve callback used resolve the promise...
to: 
...a resolve callback used to resolve the promise...

This PR suggested from: https://github.com/Microsoft/TypeScript/pull/27075
microsoft/TypeScript,Microsoft/TypeScript,Microsoft/TypeScript,kitsonk/TypeScript,minestarks/TypeScript,kitsonk/TypeScript,microsoft/TypeScript,nojvek/TypeScript,weswigham/TypeScript,donaldpipowitch/TypeScript,SaschaNaz/TypeScript,SaschaNaz/TypeScript,weswigham/TypeScript,kpreisser/TypeScript,RyanCavanaugh/TypeScript,nojvek/TypeScript,RyanCavanaugh/TypeScript,microsoft/TypeScript,nojvek/TypeScript,minestarks/TypeScript,donaldpipowitch/TypeScript,alexeagle/TypeScript,Microsoft/TypeScript,basarat/TypeScript,alexeagle/TypeScript,weswigham/TypeScript,SaschaNaz/TypeScript,alexeagle/TypeScript,basarat/TypeScript,basarat/TypeScript,donaldpipowitch/TypeScript,SaschaNaz/TypeScript,basarat/TypeScript,kitsonk/TypeScript,minestarks/TypeScript,donaldpipowitch/TypeScript,RyanCavanaugh/TypeScript,nojvek/TypeScript,kpreisser/TypeScript,kpreisser/TypeScript