fix missing semicolons in conditionals section

Author: rsokl

Python/Module2_EssentialsOfPython/ConditionalStatements.md

@@ -227,11 +227,11 @@ if 3 < len(x):
     # bool(3 < 2) returns False, this code 
     # block is skipped
     print("`x` has more than three items in it")
-elif len(x) == 2
+elif len(x) == 2:
     # bool(len(x) == 2) returns True
     # this code block is executed
     print("`x` has two items in it")
-elif len(x) == 1
+elif len(x) == 1:
     # this statement is never reached
     print("`x` has one items in it")
 else:
@@ -332,6 +332,8 @@ That is:
 Python supports a syntax for writing a restricted version of if-else statements in a single line. The following code:
 
 ```python
+num = 2
+
 if num >= 0:
     sign = "positive"
 else:

Python/changes.rst

@@ -5,6 +5,13 @@ Changelog
 This is a record of all past PLYMI releases and what went into them,
 in reverse chronological order.
 
+----------
+2021-02-28
+----------
+
+Fixes a syntax error (missing colons) in a code snippet in `a subsection about conditional expressions <https://www.pythonlikeyoumeanit.com/Module2_EssentialsOfPython/ConditionalStatements.html#if,-else,-and-elif>`_.
+
+
 ----------
 2021-01-31
 ----------