A little more code docs updating.

Codecademy.md

@@ -121,6 +121,14 @@ If it uses dot notation like `.lower()`, it works exclusively on strings.
 
 `"Ten times a cow is equal to " + result + " with 10 times as many breeding opportunities."`
 
+or
+
+`print(var, var2, var3)`
+
+or
+
+`string1 += string2`
+
 ## String Formatting with %
 
   `"%s %s - 2020" % (month, day) # Replace %s with a variable. First the month, then the day.`
@@ -163,6 +171,8 @@ total_cost = cucumbers * price_per_cucumber
 print(total_cost)
 ```
 
+`total_price += nice_sweater`
+
 Cool concept from Ch2 Ex15:
 
 ```