doc: sample: switch to kebab-case

doc/sample/CaesarCipher.im

@@ -15,32 +15,31 @@ while true do
     end
 end
 
-shiftWidth = 0
+shift-width = 0
 
 while true do
     cout print:'Shift size: '
     cout flush
 
-    shiftStr = ''
-    cin get:shiftStr
+    shift-str = cin read-line.
 
-    if shiftStr == '' then
+    if shift-str == '' then
         continue
     end
 
     try
-        shiftWidth = Int parse:shiftStr
-    catch (#err:number_format, err)
+        shift-width = Int parse:shift-str
+    catch ($err:number-format, err)
         continue
     end
 
     break
 end
 
-encodedMessage = ''
+encoded-message = ''
 
 for c in message do
-    i = c toOrdinal
+    i = c to-ordinal
     sub = 0
 
     if i >= 65 && i <= 90 then
@@ -50,16 +49,16 @@ for c in message do
     else
         continue
     end
-        
+
     i -= sub
-    i += shiftWidth
+    i += shift-width
 
     if i >= 26 then
         i -= 26
     end
 
-    c2 = i toChar
-    encodedMessage += c2
+    c2 = i to-char
+    encoded-message += c2
 end
 
-cout put:encodedMessage
+cout put:encoded-message