Apply suggestions from code review

Co-authored-by: Dario-DC <105294544+Dario-DC@users.noreply.github.com>

curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553a7d8d05cbb1ae335a665.md

@@ -7,7 +7,9 @@ dashedName: step-45
 
 # --description--
 
-When the loop reaches the letter `Z`, the sum `index + shift` exceeds the length of the string `alphabet`. At that point the `new_index` in `alphabet[new_index]` is higher than the last index in the string, which is not a valid index so there is an `IndexError` thrown, you can notice that the output in the terminal stops at the space immediately before the `Z`, the last `print` before the error is thrown.
+When the loop reaches the letter `Z`, the sum `index + shift` exceeds the last index of the string `alphabet`. Therefore, `alphabet[new_index]` is trying to use an invalid index, which causes an `IndexError` to be thrown.
+
+You can notice that the output in the terminal stops at the space immediately before the `Z`, the last `print` before the error is thrown.
 
 In this case, the modulo operator (`%`) can be used to return the remainder of the division between two numbers. For example: `5 % 2` is equal to `1`, because 5 divided by 2 has a quotient of 2 and a remainder of 1.
 

curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/6553f4f66099802c6ae94613.md

@@ -7,9 +7,9 @@ dashedName: step-53
 
 # --description--
 
-Restore the `caesar()` function call.
+Right now, your code raises a `TypeError`, because the `caesar` function is defined with two parameters (`message` and `offset`), therefore it expects to be called with two *arguments*.
 
-Right now, your code can't execute because the `caesar` function is defined with two parameters (`message` and `offset`) but it is called without *arguments*.
+Calling `caesar()` without the required arguments stops the execution of the code.
 
 Give `message` and `offset` values, by passing `text` and `shift` as arguments to the `caesar` function call.
 
@@ -47,6 +47,6 @@ def caesar(message, offset):
     print('plain text:', message)
     print('encrypted text:', encrypted_text)
 --fcc-editable-region--
-# caesar()
+caesar()
 --fcc-editable-region--
 ```

curriculum/challenges/english/07-scientific-computing-with-python/learn-string-manipulation-by-building-a-cipher/65687d2f8c7ee27b0446cef3.md

@@ -16,7 +16,7 @@ for i in text:
 
 Python relies on indentation to indicate blocks of code. A colon at the end of a line is a signal that a new indented block of code will follow.
 
-So, when no indented block is found after the final colon, the code execution stops and an `IndentationError` is thrown. This code will not show the output and instead show the `IndentationError`:
+So, when no indented block is found after the final colon, the code execution stops and an `IndentationError` is thrown. This code will not show the output and instead raise an `IndentationError`:
 
 ```py
 for i in text: