doc/DeveloperGuide.md: remove setting up section

docs/DeveloperGuide.md

@@ -1,26 +1,4 @@
-# Duke - Developer Guide
-
-## Setting up
-
-**Prerequisites**
-
-* JDK 11
-* Recommended: IntelliJ IDE
-* Fork this repo to your GitHub account and clone the fork to your computer
-
-**Importing the project into IntelliJ**
-
-1. Open IntelliJ (if you are not in the welcome screen, click `File` > `Close Project` to close the existing project dialog first).
-1. Set up the correct JDK version.
-   * Click `Configure` > `Structure for new Projects` (in older versions of Intellij:`Configure` > `Project Defaults` > `Project Structure`).
-   * If JDK 11 is listed in the drop down, select it. If it is not, click `New...` and select the directory where you installed JDK 11.
-   * Click `OK`.
-1. Click `Import Project`.
-1. Locate the project directory and click `OK`.
-1. Select `Create project from existing sources` and click `Next`.
-1. Rename the project if you want. Click `Next`.
-1. Ensure that your `src` folder is checked. Keep clicking `Next`.
-1. Click `Finish`.
+# Developer Guide
 
 ## Design & Implementation
 
@@ -30,11 +8,11 @@
 ## Product Scope
 ### Target user profile
 
-{Describle target user profile}
+{Describe the target user profile}
 
 ### Value proposition
 
-{Describe the value proposition}
+{Describe the value proposition: what problem does it solve?}
 
 ## User Stories