typo fixes provided by Susanne

Author: Hiltiprant

exercises/week_6/assignment/exercise.md

@@ -4,7 +4,7 @@ In this assignment you are going to build a Python program to access the
 [Apple iTunes Search Service](https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/iTuneSearchAPI/Searching.html).
 This service can be used to search information about musicians, albums, songs and so on.
 
-Using the following URL a search for the term _ramones_ and for the entity type
+Using the following URL, a search for the term _ramones_ and for the entity type
 _album_ is performed:
 [https://itunes.apple.com/search?term=ramones&entity=album](https://itunes.apple.com/search?term=ramones&entity=album)
 
@@ -33,16 +33,16 @@ example result of the service:
     ]
     }
 
-The response in the example above consist of one result (`resultCount` is 1). This result is the album
-"Ramones" (element `collectionName`) by the artist "Ramones" (element `artistName`)
+The response in the example above consists of one result (`resultCount` is 1). This result is the album
+"Ramones" (element `collectionName`) by the artist "Ramones" (element `artistName`).
 The response is in [JSON](https://en.wikipedia.org/wiki/JSON) format.
 
 The [Requests](https://docs.python-requests.org/en/latest/)
 library can be used to invoke the Apple iTunes Search Service.
-In order to perform a search a [GET request](https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol#Request_methods)
+In order to perform a search, a [GET request](https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol#Request_methods)
 needs to be performed. This is done using the `get()` function of the Requests library.
-After that the method `json()` of the Requests
-library can be used to mapped the response from [JSON](https://en.wikipedia.org/wiki/JSON)
+After that, the method `json()` of the Requests
+library can be used to map the response from [JSON](https://en.wikipedia.org/wiki/JSON)
 to the Python 🐍 data types `dict` and `list`.
 
 ---
@@ -64,7 +64,7 @@ Below is an example execution of the program. Note that the output is abbreviate
 # Hints
 
 1. In Code Ocean it is not possible to access the iTunes search API. Therefore you should
-   write and test you program on your own computer e.g. in a Jupyter notebook.
-1. Out tests in Code Ocean uses a [mock object](https://en.wikipedia.org/wiki/Mock_object) to check
+   write and test your program on your own computer e.g. in a Jupyter notebook.
+1. Our tests in Code Ocean use a [mock object](https://en.wikipedia.org/wiki/Mock_object) to check
    your program. Therefore only the `get()` function and the `json()` method are supported. All other
-   functions and methods of the Requests library will **not** work.
+   functions and methods of the Requests library will **not** work.