Update 776-string-chr.markdown

Author: Joe7M

_build/reference/776-string-chr.markdown

@@ -1,32 +1,34 @@
 # CHR
 
-> CHR (x)
+> s = CHR (x)
 
-Returns one-char string of character with ASCII code x.
+Returns an one-char string of character with ASCII code `x`.
 
 See ASC to convert a character to ASCII code.
 
-Example 1:
+### Example 1
 
 ```
-print "ASCII code 65 is '" + chr(65) + "'"
-
-' Output ASCII code 65 is 'A'
+print "ASCII code 65 is '" + chr(65) + "'"        ' Output ASCII code 65 is 'A'
 ```
 
-Example 2: The CHR command is useful for obtaining and printing the escape character (ASCII 27). For more information about escape codes see article "Escape Codes"
+### Example 2: Get escape character
+
+The CHR command is useful for obtaining and printing the escape character (ASCII 27). For more information about escape codes see article "Escape Codes"
 
 ```
 PRINT CHR(27) + "[1mTHIS IS BOLD" + CHR(27) + "[0m"
 PRINT CHR(27) + "[3mThis is italic" + CHR(27) + "[0m"
 PRINT CHR(27) + "[4mThis is underline"
 ```
 
-Example 3: Print ASCII table
+### Example 3: Print ASCII table
 
 ```
-rem display the ASCII and the extended tables
+REM display the ASCII and the extended tables
+
 For n = 0 To 255
+
   If n = 0 Then
     Color 15, 0: Locate 1, 1
     Print "Standard 7-bit ASCII table (character codes 0 - 127):";
@@ -37,6 +39,7 @@ For n = 0 To 255
     Color 15, 0: Cls: Locate 1, 1
     Print "Nonstandard 8-bit Extended table (character codes 128 - 255):";
   Endif
+
   If n <= 31 Then ' control characters (e.g. new-line, tab, etc).
     Read c
   Elseif n = 32 Then ' regular space (invisible...)
@@ -46,15 +49,18 @@ For n = 0 To 255
   Else
     c = Chr(n) ' ASCII code --> character
   Endif
+
   Locate (n Mod 16) + 3, (((n \ 16) Mod 8) * 9) + 1
 
   Color 7: Print Using "000 "; n; ' ASCII code
   Color 14: Print c; ' ASCII (or ANSI) character
 Next
+
 Color 7, 0: Print: Print
 Print " * Nonstandard characters might look different on another system."
 
 End
+
 ' nonprintable control characters (ASCII codes 0..31):
 Data "nul", "soh", "stx", "etx", "eot" ' 0..4
 Data "enq", "ack", "bel", "bs" , "tab" ' 5..9
@@ -64,5 +70,3 @@ Data "dc4", "nak", "syn", "etb", "can" ' 20..24
 Data "em" , "eof", "esc", "fs" , "gs"  ' 25..29
 Data "rs" , "us"  ' 30..31
 ```
-
-