Fix line breaks and R-Host repo URL in README.md.
Fix line breaks and R-Host repo URL in README.md.

AlexanderSher/RTVS,karthiknadig/RTVS,karthiknadig/RTVS,AlexanderSher/RTVS,MikhailArkhipov/RTVS,karthiknadig/RTVS,MikhailArkhipov/RTVS,MikhailArkhipov/RTVS,MikhailArkhipov/RTVS,MikhailArkhipov/RTVS,karthiknadig/RTVS,karthiknadig/RTVS,MikhailArkhipov/RTVS,AlexanderSher/RTVS,AlexanderSher/RTVS,karthiknadig/RTVS,AlexanderSher/RTVS,karthiknadig/RTVS,MikhailArkhipov/RTVS,AlexanderSher/RTVS,AlexanderSher/RTVS