fix: adds useModel to main exports

fixes #44

Author: stuarthendren

src/index.ts

@@ -8,6 +8,7 @@ export * from './useHover'
 export * from './useInterval'
 export * from './useKeyboard'
 export * from './useLocalState'
+export * from './useModal'
 export * from './usePoll'
 export * from './useTimeout'
 export * from './useTitle'