README.md in trackler-2.2.1.48

- old
+ new
@@ -9,44 +9,49 @@
 of an imaginary fence, then moving up when we get to the bottom (like a zig-zag).
 Finally the message is then read off in rows.
 
 For example, using three "rails" and the message "WE ARE DISCOVERED FLEE AT ONCE",
 the cipherer writes out:
-```
+
+```text
 W . . . E . . . C . . . R . . . L . . . T . . . E
 . E . R . D . S . O . E . E . F . E . A . O . C .
 . . A . . . I . . . V . . . D . . . E . . . N . .
 ```
 
 Then reads off:
-```
+
+```text
 WECRLTEERDSOEEFEAOCAIVDEN
 ```
 
-
 To decrypt a message you take the zig-zag shape and fill the ciphertext along the rows.
-```
+
+```text
 ? . . . ? . . . ? . . . ? . . . ? . . . ? . . . ?
 . ? . ? . ? . ? . ? . ? . ? . ? . ? . ? . ? . ? .
 . . ? . . . ? . . . ? . . . ? . . . ? . . . ? . .
 ```
 
 The first row has seven spots that can be filled with "WECRLTE".
-```
+
+```text
 W . . . E . . . C . . . R . . . L . . . T . . . E
 . ? . ? . ? . ? . ? . ? . ? . ? . ? . ? . ? . ? .
 . . ? . . . ? . . . ? . . . ? . . . ? . . . ? . .
 ```
 
 Now the 2nd row takes "ERDSOEEFEAOC".
-```
+
+```text
 W . . . E . . . C . . . R . . . L . . . T . . . E
 . E . R . D . S . O . E . E . F . E . A . O . C .
 . . ? . . . ? . . . ? . . . ? . . . ? . . . ? . .
 ```
 
 Leaving "AIVDEN" for the last row.
-```
+
+```text
 W . . . E . . . C . . . R . . . L . . . T . . . E
 . E . R . D . S . O . E . E . F . E . A . O . C .
 . . A . . . I . . . V . . . D . . . E . . . N . .
 ```
 