Tweak some comments

Marlin/src/lcd/HD44780/ultralcd_HD44780.cpp

@@ -741,7 +741,7 @@ void MarlinUI::draw_status_message(const bool blink) {
  *         |F---%  SD---% T--:--|
  *         |01234567890123456789|
  *
- *  LCD_INFO_SCREEN_STYLE 1 : Prusa-style Status Screen
+ *  LCD_INFO_SCREEN_STYLE 1 : Průša-style Status Screen
  *
  *  |T000/000°  Z 000.00 |
  *  |B000/000°  F---%    |

Marlin/src/pins/pins_MKS_SBASE.h

@@ -125,7 +125,7 @@
 #define PIN_P2_11          P2_11   // Interrupt Capable
 
 //
-// Prusa i3 MK2 Multi Material Multiplexer Support
+// Průša i3 MK2 Multi Material Multiplexer Support
 //
 #if ENABLED(MK2_MULTIPLEXER)
   #define E_MUX0_PIN       P1_23   // J8-3

Marlin/src/pins/pins_STM32F4.h

@@ -132,7 +132,7 @@
 //#define NEOPIXEL_PIN      PF13
 
 //
-// Prusa i3 MK2 Multi Material Multiplexer Support
+// Průša i3 MK2 Multi Material Multiplexer Support
 //
 
 //#define E_MUX0_PIN         PG3

Marlin/src/pins/pins_THE_BORG.h

@@ -142,7 +142,7 @@
 //#define NEOPIXEL_PIN      PF13
 
 //
-// Prusa i3 MK2 Multi Material Multiplexer Support
+// Průša i3 MK2 Multi Material Multiplexer Support
 //
 
 #define E_MUX0_PIN         PG3