Add correct screenshot to exercise 1

.issues/exercise_1.md

@@ -4,19 +4,11 @@
 
 Please follow these instructions step-by-step before the course starts.
 
-## 1. Fork this repository
+### 1. Fork this repository
 
-![Indicates where the Fork button is (top-right corner of the repository page)](https://i.imgur.com/ZCxOrOX.png)
+![Indicates where the Fork button is (top-right corner of the repository page)](https://i.imgur.com/HiBlmrj.png)
 
-## 2. Go to the settings in your fork
-
-![Indicates where the settings button appears once the repository is forked](https://i.imgur.com/1aGRVVB.png)
-
-## 3. Enable issues
-
-![Enable issues on your fork](https://user-images.githubusercontent.com/963242/95435705-ce66b700-094a-11eb-8424-770ed92a99f6.png)
-
-## 4. Clone your repository locally
+### 2. Clone your repository locally
 
 In a `bash` terminal on your computer, run:
 ```bash
@@ -31,9 +23,10 @@ A folder named `rse-best-practices-playground` should be listed.
 
 (If this does not work, you may have to set up a personal access token: Follow the instructions [in the GitHub documentation](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens#creating-a-fine-grained-personal-access-token) and get in touch with the course organisers if you encounter issues.)
 
-## 5. React to this issue with :+1:
+### 3. React to this issue with :+1:
 ![Select and add a reaction to this comment](https://user-images.githubusercontent.com/963242/95435873-0bcb4480-094b-11eb-9d37-2fdefdcb8c6f.png)
 
-## 6. (Optional) Have a look at the code
+The next exercises will be described in the issues of the original repository (the one you made your fork from).
+### 4. (Optional) Have a look at the code
 
 You may want to study the code in `times.py`. You can find it by navigating to `rse-best-practices-playground` > `rse_best_practices_playground` > `times.py`. Can you figure out what the code is meant to do?