Add user guide for earl

.gitignore

@@ -15,4 +15,5 @@ bin/
 
 /text-ui-test/ACTUAL.TXT
 text-ui-test/EXPECTED-UNIX.TXT
+/text-ui-test/data/
 /data/

docs/README.md

@@ -10,7 +10,7 @@ applications.
 
 ## Features
 
-### Adding ToDos
+### Adding ToDos: `todo`
 Adds a todo to the list of tasks.
 
 Format: `todo <task name>`
@@ -20,7 +20,7 @@ Example: `todo homework`, `todo wash clothes`
 *Notes*
 + `<task name>` cannot be empty
 
-### Adding Deadlines
+### Adding Deadlines: `deadline`
 
 Adds a deadline to the list of tasks.
 
@@ -32,7 +32,7 @@ Example: `deadline project submission /by 01/01/2024 2359`
 + `<task name>` cannot be empty.
 + `<date time>` must be of the format `dd/mm/yyyy hhmm`
 
-### Adding Events
+### Adding Events: `event`
 
 Adds an event to the list of tasks.
 
@@ -44,28 +44,69 @@ Example: `event exam /from 01/01/2024 1200 /to 01/01/2024 1400`
 + `<task name>` cannot be empty.
 + `<date time>` must be of the format `dd/mm/yyyy hhmm`
 
-### List
+### Listing Tasks: `list`
 
 Displays all tasks currently tracked.
 
 Format: `list`
 
-### Find
+### Finding Tasks: `find`
 
 Displays all tasks with details matching a pattern.
 
 Format: `find <pattern>`
 
 Example: `find wash clothes`
 
-### Mark
+### Marking Tasks: `mark`
 
 Marks a task as complete.
 
-Format: `mark <index or range> [<index or range>, ...] `
+Format: `mark <indice> [<indices>, ...] `
 
 Example: `mark 1 3-5`
 
 *Notes*
 + Arguments are space separated single indices or ranges
-+ Ranges must be of the form `<index>-<index>`
++ Ranges must be of the form `<index>-<index>`
++ Tasks already marked as done are unchanged
++ Indices outside the range of valid indices are ignored
++ There must be at least 1 valid index
+
+### Unmarking Tasks: `unmark`
+
+Marks a task as incomplete.
+
+Format: `unmark <indices> [<indices>, ...]`
+
+Example: `unmark 2-4 6 8-11`
+
+*Notes*
++ Arguments are space separated single indices or ranges
++ Ranges must be of the form `<index>-<index>`
++ Tasks already marked as undone are unchanged
++ Indices outside the range of valid indices are ignored
++ There must be at least 1 valid index
+
+### Deleting Tasks: `delete`
+
+Removes a task from the list.
+
+Format: `delete <indices> [<indices>, ...]`
+
+Example: `delete 3 5 9-11`
+
+*Notes*
++ Arguments are space separated single indices or ranges
++ Ranges must be of the form `<index>-<index>`
++ Indices outside the range of valid indices are ignored
++ There must be at least 1 valid index
+
+### Closing the Application: `bye`
+
+Saves the tasks and closes the application.
+
+Format: `bye`
+
+*Notes*
++ This is equivalent to pressing the cross on the GUI