[Docs] Change 'Material UI' to 'Material-UI'
[Docs] Change 'Material UI' to 'Material-UI'

juliancoleman/timeline-frontend,sgim/react_gol,lolamastro/beerswap,aayush-k/airAssist,juliancoleman/timeline-frontend,debiasej/react-credit-card-blocker,debiasej/react-credit-card-blocker,sgim/react_gol,aayush-k/airAssist,lolamastro/beerswap