Unduplicate sessions 2/3 and add try/except

Author: Kuixz

README.md

@@ -25,8 +25,8 @@ and their solutions.
 | ----------------- | ---- | ---- | ----------------- | --------------------- |
 | Session 0: Installing Python | | | [Notes][s0notes] | [PDF][s0pdf] |
 | Session 1: Syntax and Variables | 2 | 26/10 | [Notes][s1notes] | [PDF][s1pdf]| 
-| Session 2: If statements | 3 | 2/11 | [Notes][s2notes] | [PDF][s2pdf] |
-| Session 3: For loops and While loops | 4 | 9/11 | [Notes][s3notes] | [PDF][s3pdf]|
+| Session 2: If statements, For loops | 3 | 2/11 | [Notes][s2notes] | [PDF][s2pdf] |
+| Session 3: While loops, Try | 4 | 9/11 | [Notes][s3notes] | [PDF][s3pdf]|
 | Session 4: Lists | 5 | 16/11 | [Notes][s4notes] | [PDF][s4pdf] | 
 | Session 5: Functions | 6 | 23/11 | [Notes][s5notes] | [PDF][s5pdf] | 
 | Session 6: Turtle Graphics | 7 | 30/11 | Work in progress | Work in progress | 

session2/Notes.md

@@ -112,7 +112,7 @@ if ((1 <= number and number < 10) or number == 42) and (not number == 3):
   print("This was the number: " + str(number))
 ```
 
-This code will only print `number` if it is one of the numbers [0, 1, 2, 4, 5, 6, 7, 8, 9, 42].
+This code will only print `number` if it is one of the numbers [1, 2, 4, 5, 6, 7, 8, 9, 42].
 
 *Note: there is an order of operations on logical connectives as well (which you may wish to google); however, it is recommended that you insert parentheses if you are using multiple different connectives, like in the example above.*
 
@@ -123,7 +123,7 @@ name = input("Please enter a name: ")
 if name == "Mark":
   print("Oh, hi Mark.")
 if name == "Johnny":
-  print("Oh, hey Johnny, what's up?")
+  print("Oh, hi Johnny.")
 else:
   print("Who is this?")
 ```
@@ -261,7 +261,7 @@ print("*        *")
 print("**********")
 ```
 
-But don't you think it is too repetitive? This is when loops come in handy. They allow you to repeatedly run the same piece of code multiple times. There are two types of loops, for and while loo;s.
+But don't you think it is too repetitive? This is when loops come in handy. They allow you to repeatedly run the same piece of code multiple times. There are two types of loops, for and while loops.
 
 ## For loops