kodec stuff 2

Author: Akuli

basics/getting-started.md

@@ -137,7 +137,10 @@ back to `>>>` when we press Enter again.
 
 ## Summary
 
-- Again, error messages are your friends.
+[comment]: # (the first line in this summary is exactly same as in
+what-is-programming.md, and it's supposed to be like this)
+
+- Error messages are our friends.
 - We can enter any Python commands to the interactive `>>>` prompt, and
  it will echo back the result.
 - `+`, `-`, `*` and `/` work in Python just like in math.

basics/what-is-programming.md

@@ -148,7 +148,7 @@ rest of this tutorial only if you don't understand the code.
  as needed.
 - Make sure you understand everything you read.
 - Experiment with things freely and don't fear mistakes.
-- Error messages are your friends.
+- Error messages are our friends.
 - Let me know if you have trouble with this tutorial.
 - Now we're ready to [install Python](installing-python.md) and
  [get started](getting-started.md)!