Set up user guide

docs/README.md

@@ -1,20 +1,72 @@
-# User Guide
+# iPbot User Guide
+
+![Screenshot](Ui.png)
 
 ## Features 
+### `todo` - Creates a new Todo task
+
+Adds a new Todo task. A Todo task only has a description attached.
+
+Usage: `todo <Task Description>`
+
+Expected output: An acknowledgement that iPbot has added the task.
+
+### `event` - Creates a new Event task
+
+Adds a new Event task. An Event task has both a description and an event time.
+
+Usage: `event <Task Description> /at <Event Time>`
+
+Expected output: An acknowledgement that iPbot has added the task.
+
+### `deadline` - Creates a new Deadline task
+
+Adds a new Deadline task. A Deadline task has both a description and a time due.
+
+Usage: `deadline <Task Description> /by <Time Due>`
+
+Expected output: An acknowledgement that iPbot has added the task.
+
+### `list` - Lists all tasks
+
+Retrieves all tasks in the task list and displays them.
+Note that iPbot always displays the latest task list on the right.
+
+Usage: `list`
+
+Expected output: The list of tasks
+
+### `done` - Marks a task as done
+
+Marks the task with a given ID as done. The task ID refers to the numbering in the task list.
+If the task was already marked as done, iPbot will report that in its output. 
+
+Usage: `done <Task ID>`
+
+Expected output: An acknowledgement that the task was completed.
+
+### `bye` - Exits from iPbot
+
+Immediately closes iPbot.
+
+Usage: `bye`
+
+Expected output: The application exits.
 
-### Feature 1 
-Description of feature.
+### `load` - Loads commands from a file
 
-## Usage
+Silently loads a script of commands from an external file.
+This can be the saved data file from another instance of iPbot.
 
-### `Keyword` - Describe action
+Usage: `load <File Location>`
 
-Describe action and its outcome.
+Expected output: The application exits.
 
-Example of usage: 
+### `help` - Displays help message
 
-`keyword (optional arguments)`
+Displays a list of available commands.
+Note that iPbot always displays this command list on the left.
 
-Expected outcome:
+Usage: `help`
 
-`outcome`
+Expected output: A list of available commands.