Update 2.md

Akuli · Akuli · commit 0b7b7f6c657e · 2016-06-09T09:31:38.000+03:00
diff --git a/2.md b/2.md
@@ -92,7 +92,7 @@ TypeError: unsupported operand type(s) for /: 'str' and 'str'
 Variables are easy to understand. They simply contain data. _[*]_
 
 ```py
->>> a = 1      # create a variable called a and assigns 1 to it
+>>> a = 1      # create a variable called a and assign 1 to it
 >>> a          # get the value of a
 1
 >>>
@@ -173,7 +173,7 @@ Now you also understand why typing hello to the prompt didn't work in the beginn
 
 ### Booleans and None
 
-In Python, and many other programming languages, `=` is assigning and `==` is comparing. `a = 1` sets a to 1 and `a == 1` checks if a is 1.
+In Python, and many other programming languages, `=` is assigning and `==` is comparing. `a = 1` sets a to 1 and `a == 1` checks if a equals 1.
 
 ```py
 >>> a = 1
@@ -187,7 +187,7 @@ True
 >>>
 ```
 
-`a == 2` is the same as `(a == 2) == True`. `a == 2` is more readable, so `== True` needs to be used very rarely.
+`a == 1` is the same as `(a == 1) == True`. `a == 1` is more readable, so `== True` needs to be used very rarely.
 
 ```py
 >>> a = 1
@@ -203,7 +203,7 @@ False
 >>>
 ```
 
-True and False are boolean values. In Python they're built-in variables. There's also None, which is often used as a default value. All these can be saved to variables, just like integers, floats and strings.
+True and False are boolean values. In Python they're built-in variables. _[*]_ There's also None, which is often used as a default value. All these can be saved to variables, just like integers, floats and strings.
 
 ```py
 >>> a = True
@@ -219,6 +219,8 @@ None
 >>>
 ```
 
+_[*] In Python 3, True, False and None are actually keywords, but they behave just like variables._
+
 There are other comparing operators than `==` too:
 
 | Usage         | Description                                       | True examples                         |
@@ -237,7 +239,7 @@ There are other comparing operators than `==` too:
 
 _[*] These are not always correct, but this tutorial is about Python's basics, not about cool tricks we can do with it. See [this](https://docs.python.org/3/library/stdtypes.html#truth-value-testing) for more info._
 
-There is more than one way to do some things. For example, to check if a is not equal to 1 you could do `a != 1` or `not a == 1`. To check if a is not in b you could do `a not in b` or `not a in b`. However, `!=` and `not in` should be used when possible because they're more convinient once you get used to them.
+There is more than one way to do some things. For example, to check if a is not equal to 1 you could do `a != 1` or `not a == 1`. To check if b does not contain a you could do `a not in b` or `not a in b`. However, `!=` and `not in` should be used in cases like this because they're more convinient once you get used to them.
 
 There's also `is`, but don't use it instead of `==` unless you know what you are doing.
 
