fix(curriculum): updated wordings in a course step (#53907)

curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6554d25dc5ceaa354307a77e.md

@@ -9,7 +9,7 @@ dashedName: step-69
 
 Encryption and decryption are opposite processes and your function can do both with a couple of tweaks.
 
-Add a third parameter called `direction` to your function definition. Also, comment out the last two lines to avoid errors in the console.
+Add a third parameter called `direction` to your function definition. Also, comment out the last two lines of code to avoid errors in the console.
 
 # --hints--