Add readme

Author: mohamey

README.md

@@ -1 +1,24 @@
-# swe-be-coding-interview
+# Software Engineer Backend Coding Challenge
+
+## Requirements
+* JDK 21
+
+## Local Setup
+
+**Running the Application using IntelliJ IDEA:**
+
+1. Clone this repository
+2. Import the project as a new project in IntelliJ
+3. Navigate to `GetYourGuideApplication.java` and run the main method by clicking the top green arrow on the left side of the editor.
+
+![IntelliJ Run Screenshot](resources/intellij_screenshot.png)
+
+**Running the Application using Gradle**
+
+Note: We recommend running the application using IntelliJ IDEA so you can leverage its' debug tooling.
+
+1. Clone this repository
+2. Navigate to the project directory in your terminal
+3. Run the following command: `./gradlew bootRun`
+
+The application endpoints will be accessible on `http://localhost:8080/`.