fix small mistake about backslash.

HirohitoHigashi · HirohitoHigashi · commit 9ee24a44748a · 2023-09-29T09:42:37.000+09:00
diff --git a/mruby_io_SPI_en.md b/mruby_io_SPI_en.md
@@ -77,7 +77,7 @@ Example of use:
 
 ```ruby
 spi.write( 0x30, 0xa2 )
-spi.write( "\\x30\\xa2" )
+spi.write( "\x30\xa2" )
 i2c.write( 0x02, 0xee, 0xad, 0x00, data_string )  # useful for EEPROM
 ```
 
diff --git a/mruby_io_SPI_ja.md b/mruby_io_SPI_ja.md
@@ -77,7 +77,7 @@ data = spi.read( 32 )
 
 ```ruby
 spi.write( 0x30, 0xa2 )
-spi.write( "\\x30\\xa2" )
+spi.write( "\x30\xa2" )
 i2c.write( 0x02, 0xee, 0xad, 0x00, data_string )  # useful for EEPROM
 ```
 
diff --git a/mruby_io_UART_en.md b/mruby_io_UART_en.md
@@ -99,7 +99,7 @@ Note
 Example of use:
 
 ```ruby
-uart1.write("Output string\\r\\n")
+uart1.write("Output string\r\n")
 ```
 
 Device-specific
diff --git a/mruby_io_UART_ja.md b/mruby_io_UART_ja.md
@@ -99,7 +99,7 @@ val = uart1.read( 10 )
 実行例
 
 ```ruby
-uart1.write("Output string\\r\\n")
+uart1.write("Output string\r\n")
 ```
 
 機種依存
