Update README.md

Typos

README.md

@@ -1,11 +1,11 @@
 # Minesweeper for Switch
-Basic implimentation of Minesweeper in C++ and SDL2 for Nintendo Switch.
+Basic implementation  of Minesweeper in C++ and SDL2 for Nintendo Switch.
 
 Feel free to report bugs and contribute!
 
 ## Controls
 * Plus for exit
-* Touchscreen for anything else
+* Touch screen for anything else
     - ![Flag on](https://raw.githubusercontent.com/rincew1nd/Minesweeper-Switch/master/romfs/flagOnButton.bmp) Flag cell
     - ![Flag off](https://raw.githubusercontent.com/rincew1nd/Minesweeper-Switch/master/romfs/flagOffButton.bmp) Unflag cell
     - ![Restart game](https://raw.githubusercontent.com/rincew1nd/Minesweeper-Switch/master/romfs/restartButton.bmp) Restart game
@@ -17,5 +17,5 @@ Feel free to report bugs and contribute!
 ## To-Do:
 
 * Option screen with basic parametrization
-* Touchscreen gestures for zooming and moving field
+* Touch screen gestures for zooming and moving field
 * Timer and scoreboard