code-style; em-dash

Author: dstndstn

_episodes/05-cond.md

@@ -11,8 +11,8 @@ keypoints:
 - "Use `if condition` to start a conditional statement, `elif condition` to provide additional tests, and `else` to provide a default."
 - "The bodies of the branches of conditional statements must be indented."
 - "Use `==` to test for equality."
-- "`X and Y` is only true if both X and Y are true."
-- "`X or Y` is true if either X or Y, or both, are true."
+- "`X and Y` is only true if both `X` and `Y` are true."
+- "`X or Y` is true if either `X` or `Y`, or both, are true."
 - "Zero, the empty string, and the empty list are considered false; all other numbers, strings, and lists are considered true."
 - "Nest loops to operate on multi-dimensional data."
 - "Put code whose parameters change frequently in a function, then call it with different parameter values to customize its behavior."

_episodes/06-func.md

@@ -39,7 +39,7 @@ on a different dataset or at a different point in our program?
 Cutting and pasting it is going to make our code get very long and very repetitive,
 very quickly.
 We'd like a way to package our code so that it is easier to reuse,
-and Python provides for this by letting us define things called 'functions' -
+and Python provides for this by letting us define things called 'functions' ---
 a shorthand way of re-executing longer pieces of code.
 
 Let's start by defining a function `fahr_to_kelvin` that converts temperatures from Fahrenheit to Kelvin: