feat: Add showcase images to readme

README.md

@@ -35,3 +35,39 @@ Repository](https://git.itsdrike.com/ap7pd/event-management-backend).
 > (<http://localhost:8000>) and set the base URL to `http://10.0.2.2:8000`.
 > This will allow the Android emulator to access the local backend server. Note
 > that this is also the default value.
+
+## Showcase
+
+Below is a showcase of key features and screens in the application:
+
+| ![API Unreachable](showcase/01_api_unreachable.png)       | ![Login Screen](showcase/02_login.png) | ![Base URL Change](showcase/02_login_base_url_change.png)                                      |
+| --------------------------------------------------------- | -------------------------------------- | ---------------------------------------------------------------------------------------------- |
+| Error screen, shown whenever the API becomes unreachable. | Login screen for user authentication.  | Screen to update the API base URL, available from the login, register & API unreachable pages. |
+
+| ![Register Screen](showcase/03_register.png) | ![Month View](showcase/04_month_view.png) | ![Day View](showcase/05_day_view.png)             |
+| -------------------------------------------- | ----------------------------------------- | ------------------------------------------------- |
+| User registration screen.                    | Monthly calendar view to browse events.   | Daily event view with event details for that day. |
+
+| ![Edit Duration Event](showcase/06_duration_event_edit.png) | ![Edit Instant Event](showcase/07_instant_event_edit.png) | ![Invite User to Event](showcase/08_invite_user_to_event.png) |
+| ----------------------------------------------------------- | --------------------------------------------------------- | ------------------------------------------------------------- |
+| Edit screen for duration-based events.                      | Edit screen for instant events.                           | Interface for inviting users to an event.                     |
+
+| ![Duration Event Details](showcase/09_duration_event_details.png) | ![Instant Event Details](showcase/10_instant_event_details.png) | ![Categories Overview](showcase/11_categories.png) |
+| ----------------------------------------------------------------- | --------------------------------------------------------------- | -------------------------------------------------- |
+| Detailed view of a duration-based event.                          | Detailed view of an instant event.                              | List of event categories of the user.              |
+
+| ![Create New Category](showcase/12_new_category.png) | ![Updated Categories](showcase/13_categories_with_new.png) | ![Settings Screen](showcase/14_settings.png)                        |
+| ---------------------------------------------------- | ---------------------------------------------------------- | ------------------------------------------------------------------- |
+| Form to create a new category.                       | Updated list with a newly added category.                  | Settings menu for app configuration. Only available when logged in. |
+
+| ![Notification: Invite](showcase/15_notification_invite_bob.png) | ![Invite Preview](showcase/16_invite_event_details_preview.png) | ![Notification: Invite Accepted](showcase/17_notification_invite_accepted_bob.png) |
+| ---------------------------------------------------------------- | --------------------------------------------------------------- | ---------------------------------------------------------------------------------- |
+| Notification about an (incomming) event invite.                  | Preview of the event from the invite.                           | Notification for the (incomming) invite after accepting (already marked read).     |
+
+| ![Day View with Invite](showcase/18_day_view_invited_event_bob.png) | ![Invited Event Details](showcase/19_invited_event_details_bob.png) | ![Notification Accepted John](showcase/20_notification_invite_accepted_john.png)         |
+| ------------------------------------------------------------------- | ------------------------------------------------------------------- | ---------------------------------------------------------------------------------------- |
+| Day view showing the invited event.                                 | Details of an event the user was invited to.                        | Notification about user having accepted an outgoing invite (from the invitor's account). |
+
+| ![Notifications Cleared](showcase/21_notifications_cleared.png) |
+| --------------------------------------------------------------- |
+| Screen showing cleared notifications.                           |