opinionated changes to level 11 (hedyorg#418)

* typos
* haakjes bij input, niet bij ask
* polish English translation level 11
* use more descriptive variable names in level 11
* add whitespace to range() function

coursedata/level-defaults/en.yaml

@@ -298,26 +298,24 @@
     start_code: |-
         age is input('What is your age?')
         print('So you have been these ages:')
-        for i in range(0,age):
+        for i in range(0, age):
             print(i)
-    intro_text: "We are going to put round brackets and we are going to change ask! We change ask into input! At print, ask and for, we are going to put round brackets now."
+    intro_text: "We are going to use round brackets and we are going to change ask! We change ask into input! With print, input and for we will use round brackets now."
     commands:
-    -   explanation: "We are going to put brackets around print now!"
+    -   explanation: "We are going to use brackets with print now!"
         example: "For example: print('Hello World')"
         demo_code: "print('Hello World')"
-    -   explanation: "We remove ask and call it input now, also we are going to put brackets around it"
-        example: "For example: answer is input('What is your name?')"
+    -   explanation: "We remove ask and call it input now. Also we are going to use brackets."
+        example: "For example: name is input('What is your name?')"
         demo_code: |-
-            answer = input('What is your name?')
-            print('So your name is ' answer)
-    -   explanation: "We are now putting brackets around the numbers in the for loop. for i in range (0,10):"
-        example: "For example: for i in range(0,10):"
+            name is input('What is your name?')
+            print('So your name is ' name)
+    -   explanation: "We are now putting brackets around the numbers in the for loop. for i in range (0, 10):"
+        example: "For example: for i in range(0, 10):"
         demo_code: |-
-            for i in range(0,10):
+            for i in range(0, 10):
                 print(i)
             print('Ready or not, here I come')
-
-
 12:
     start_code: |-
         fruit is ['apple', 'banana', 'cherry']
@@ -336,7 +334,7 @@
             fruit is ['banana', 'apple', 'cherry']
             firstfruit is fruit[1]
             print(firstfruit)
-    -   name: "Get an random item from a list"
+    -   name: "Get a random item from a list"
         explanation: "To get a random item from a list we use [random] so fruit[random] means, get a random fruit from the list!"
         example: "For example: randomfruit is fruit[random]"
         demo_code: |-
@@ -359,7 +357,7 @@
         explanation: "In this example, we use `True` and `False` to keep track of the answer of a question. You can answer 5 times. If the answer is correct, good_answer will be `True`."
         example: "good_answer is `False`"
         demo_code: |-
-          for i in range(1,5):
+          for i in range(1, 5):
               good_answer is False
               answer is input('What is 5*5')
               if answer is 25:
@@ -404,7 +402,7 @@
 15:
     start_code: |-
         # This is a program that is going to ask a couple of math questions
-        for i in range(1,10):
+        for i in range(1, 10):
             # We are going to ask the multiplication table of 5
             answer is input('What is ' i ' times 5?')
             # We check if the answer is the same as our sum
@@ -440,7 +438,7 @@
             if age < 12:
                 print('You are younger than me!')
     -   name: "Bigger"
-        explanation: "We use the `>` to check if the first number is bigger than the second number. For example if we want to see if a variable is bigger than 15, we use `variable > 15`"
+        explanation: "We use the `>` to check if the first number is bigger than the second number. For example if we want to see if a variable is bigger than 15, we use `variable > 15`."
         example: "For example: age > 12"
         demo_code: |-
             age is input('How old are you?')

coursedata/level-defaults/nl.yaml

@@ -331,25 +331,25 @@
     start_code: |-
         leeftijd is input('Hoe oud ben jij?')
         print('Dus jij hebt zo veel verjaardagen gehad:')
-        for i in range(0,leeftijd):
+        for i in range(0, leeftijd):
             print(i)
-    intro_text: "We gaan nu ronde haakjes toevoegen en ask veranderen! Ask noemen we nu input! Bij print, ask en for gaan we nu haakjes zetten!"
+    intro_text: "We gaan nu ronde haakjes toevoegen en ask veranderen! Ask noemen we nu input! Bij print, input en for gaan we nu haakjes zetten!"
     commands:
     -   name: "Print"
         explanation: "We gaan nu haakjes om print heen zetten!"
         example: "Bijvoorbeeld: print('Hallo Wereld')"
         demo_code: "print('Hallo Wereld')"
     -   name: "Ask naar input!"
         explanation: "We zetten ask om en noemen het nu input, ook zetten we haakjes er omheen"
-        example: "Bijvoorbeeld: antwoord is input('Hoe heet jij?')"
+        example: "Bijvoorbeeld: naam is input('Hoe heet jij?')"
         demo_code: |-
-            antwoord is input('Hoe heet jij?')
-            print('Dus jij heet ' antwoord)
+            naam is input('Hoe heet jij?')
+            print('Dus jij heet ' naam)
     -   name: "For met haakjes"
-        explanation: "We gaan nu in plaats van for i in range 1 to 10, haakjes zetten om de getallen. for i in range(0,10):"
-        example: "Bijvoorbeeld: for i in range(0,10):"
+        explanation: "We gaan nu in plaats van for i in range 1 to 10, haakjes zetten om de getallen. for i in range(0, 10):"
+        example: "Bijvoorbeeld: for i in range(0, 10):"
         demo_code: |-
-            for i in range(0,10):
+            for i in range(0, 10):
                 print(i)
             print('Wie niet weg is is gezien')
 12:
@@ -394,7 +394,7 @@
         explanation: "Hierbij een voorbeeldje van een vraag om een rekensom te beantwoorden. Je mag 5 keer antwoord geven. Als het goed is, maakt het goed_antwoord `True` (dus waar)"
         example: "goed_antwoord is `False`"
         demo_code: |-
-            for i in range(0,5):
+            for i in range(0, 5):
                 goed_antwoord is False
                 antwoord is input('Wat is 5*5')
                 if antwoord is 25:
@@ -439,7 +439,7 @@
 15:
     start_code: |-
         # Dit is een programma die een aantal sommen gaat vragen
-        for i in range(1,10):
+        for i in range(1, 10):
             # We gaan de van de tafel van 5 vragen
             antwoord is input('Hoeveel is ' i ' keer 5?')
             # We kijken of de som gelijk is aan het antwoord