Restore section in user guide (#14)

* Add saving data, faq and command summary section in user guide

* Add 'table of contents' and 'quick start'

* Update some minor formatting in quick start section

* Change 'contact' to 'task'

* Add faq link in content list

* Removed clear command.
Chang all instances of addressbook/this app/the app to Agendum.

docs/UserGuide.md

@@ -1,4 +1,29 @@
 # User Guide
+* [Quick Start](#quick-start)
+* [Features](#features)
+* [FAQ](#faq)
+* [Command Summary](#command-summary)
+
+## Quick Start
+
+0. Ensure you have Java version `1.8.0_60` or later installed in your Computer.<br>
+   > Having any Java 8 version is not enough. <br>
+   Agendum will not work with earlier versions of Java 8.
+
+1. Download the latest `Agendum.jar` from the [releases](../../../releases) tab.
+2. Copy the file to the folder you want to use as the home folder for Agendum.
+3. Double-click the file to start Agendum. The GUI should appear in a few seconds. 
+
+4. Type the command in the command box and press <kbd>Enter</kbd> to execute it. <br>
+   e.g. typing **`help`** and pressing <kbd>Enter</kbd> will list some information about commands. 
+5. Some example commands you can try:
+   * **`list`** : lists all contacts
+   * **`add`**` Go to shopping mall` : 
+     adds a task with descipription `Go to shopping mall` to Agendum.
+   * **`delete`**` 3` : deletes the 3rd task shown in the current list
+   * **`exit`** : exits Agendum
+
+6. Refer to the [Features](#features) section below for details of each command.<br>
 
 ## Features
 
@@ -13,17 +38,17 @@
 Format: `help`
 
 > Help is also shown if you enter an incorrect command e.g. `run`
- 
-#### Adding a person: `add`
+
+#### Adding a task: `add`
 Adds a floating task to the task list  
-Format: `add TASK_NAME` 
+Format: `add TASK_NAME`
 This will create a floating task without any start time, end time or deadline.
 Examples:
 
 > add watch Star Wars
 
 Adds a task to be done by a specific date
-Format: `add TASK_NAME by DATE_TIME`  or `add TASK_NAME before DATE_TIME` 
+Format: `add TASK_NAME by DATE_TIME`  or `add TASK_NAME before DATE_TIME`
 
 > Date formats are highly flexible and case-insensitive
 
@@ -35,7 +60,7 @@ Examples:
 * `add watch Star Wars by 10 Oct, 9.30pm`
 
 Adds a task (event) to be done on a specific date with a start and end time
-Format: `add TASK_NAME [from START_DATE_TIME] [to END_DATE_TIME] ` 
+Format: `add TASK_NAME [from START_DATE_TIME] [to END_DATE_TIME] `
 If dates are not specified, the task will be created without start or end date/time
 If only one date is specified, it will be set as the end date and time.
 
@@ -53,168 +78,168 @@ Shows a list of all uncompleted tasks.
 Format: `list`
 
 Shows a list of all overdue tasks. The tasks will be sorted by their dates.  
-Format: `list overdue` 
+Format: `list overdue`
 
 Shows a list of all upcoming tasks within a week. The tasks will be sorted by their dates.  
-Format: `list near` 
+Format: `list near`
 
 Shows a list of all completed tasks.  
-Format: `list done` 
+Format: `list done`
 
 Shows a list of all tasks including all completed and uncompleted tasks.  
-Format: `list all` 
+Format: `list all`
 
-#### Finding all tasks containing any keyword in their name: `find` 
+#### Finding all tasks containing any keyword in their name: `find`
 Finds tasks that contain any of the given keywords.  
 Format: `find KEYWORD``...`
 
-  > * The search is not case sensitive. e.g `assignment` will match `Assignment` 
-  > * The order of the keywords does not matter. e.g. `Hans Bo` will match `Bo Hans` 
+  > * The search is not case sensitive. e.g `assignment` will match `Assignment`
+  > * The order of the keywords does not matter. e.g. `Hans Bo` will match `Bo Hans`
   > * Only the name is searched
-  > * Only full words will be matched e.g. `Han` will not match `Hans` 
-  > * Tasks matching at least one keyword will be returned (i.e. `OR` search). e.g. `2103` will match `2103 assignment` 
+  > * Only full words will be matched e.g. `Han` will not match `Hans`
+  > * Tasks matching at least one keyword will be returned (i.e. `OR` search). e.g. `2103` will match `2103 assignment`
 
-Examples: 
+Examples:
 * `find Dory`<br>
   Returns `Finding Dory` and `dory`
 * `find Nemo Dory`<br>
   Returns all tasks that contain `Dory` or `Nemo`
 
-#### Deleting a person : `delete`
+#### Deleting a task : `delete`
 Deletes the specified task from the task list.  
 Format: `delete INDEX`
 
-> Deletes the person at the specified `INDEX`. 
+> Deletes the task at the specified `INDEX`.
   The index refers to the index number shown in the most recent listing.<br>
   The index **must be a positive integer** 1, 2, 3, ...
 
-Examples: 
+Examples:
 * `list`<br>
   `delete 2`<br>
   Deletes the 2nd task in the task list.
-* `find Betsy`<br> 
+* `find Betsy`<br>
   `delete 1`<br>
   Deletes the 1st task in the results of the `find` command.
-  
+
 It is possible to delete multiple tasks in the task list.  
 Examples:
 
-    list 
-    delete 2 3 4 
+    list
+    delete 2 3 4
 - Deletes the 2nd, 3rd and 4th tasks in the task list.
 
-#### Updating the name of a task : `rename` 
-Renames the specified task in the task list. 
-Format: `rename INDEX NEW_TASK_NAME` 
+#### Updating the name of a task : `rename`
+Renames the specified task in the task list.
+Format: `rename INDEX NEW_TASK_NAME`
 
 > Rename the task at the specified `INDEX`. The index refers to the index number shown in the most recent listing.
 > The index **must be a positive integer** 1, 2, 3, ...
 
 Examples:
 
-    list 
+    list
     rename 2 Star Wars II
 - Updates the name of the 2nd task in the task list to “Star Wars II”.
-    find Star Trek 
+    find Star Trek
     rename 1 Star Wars II
 - Updates the name of the 1st task in the results of the `find` command to “Star Wars II”.
 
-#### Updating the date/time of a task : `schedule` 
-Updates the time of the specified task in the task list. 
-Format: `schedule INDEX NEW_TIME_DESCRIPTION` 
+#### Updating the date/time of a task : `schedule`
+Updates the time of the specified task in the task list.
+Format: `schedule INDEX NEW_TIME_DESCRIPTION`
 
 > Schedule the task at the specified `INDEX`. The index refers to the index number shown in the most recent listing.
 > The index **must be a positive integer** 1, 2, 3, ...
 > The time description must follow the format given in the add command examples
 
 Examples:
 
-    list 
-    schedule 4 
+    list
+    schedule 4
 - Removes the specified start and/or end time and deadline for task 4 on the list.
-    list 
+    list
     schedule 2 by Fri
 - Remove the specified start/end time and deadline for task 2 and set the deadline to the coming Friday (If the current day is Friday, it would be the following Friday).
-    list 
+    list
     schedule 3 from 1 Oct 7pm to 9.30pm
 - Sets the start time as 7pm, the end time as 9.30pm and the date as 1 October for task 3 on the list.
 
-#### Marking a task as completed : `mark` 
+#### Marking a task as completed : `mark`
 Marks the specified task in the task list
-Format: `mark INDEX...` 
+Format: `mark INDEX...`
 
 > Mark the task(s) at the specified `INDEX(es)`. The index refers to the index number shown in the most recent listing.
 > The index **must be a positive integer** 1, 2, 3, ...
 > The index can be in any order.
 
 Examples:
 
-    list 
-    mark 2 
+    list
+    mark 2
 - Marks the 2nd task in the task list.
-    find Homework 
-    mark 1 
+    find Homework
+    mark 1
 - Marks the 1st task in the results of the `find` command.
-    list 
-    mark 3 2 4 
+    list
+    mark 3 2 4
 - Marks the 2nd, 3rd and 4th tasks in the task list.
 
-#### Unmarking a task as completed : `unmark` 
+#### Unmarking a task as completed : `unmark`
 This works simlar to the `mark` command. Unmarks the specified task in the task list
-Format: `unmark INDEX...` 
+Format: `unmark INDEX...`
 
 > Mark the task(s) at the specified `INDEX(es)`. The index refers to the index number shown in the most recent listing.
 > The index **must be a positive integer** 1, 2, 3, ...
 > The index can be in any order.
 
 Examples:
 
-    list 
-    unmark 3 
+    list
+    unmark 3
 - Unmarks the 3rd task in the task list.
-    find Homework 
-    unmark 2 
+    find Homework
+    unmark 2
 - Unmarks the 2nd task in the results of the `find` command.
-    list 
-    unmark 5 6 7 
+    list
+    unmark 5 6 7
 - Unmarks the 5th, 6th and 7th tasks in the task list.
 
-#### Selecting a task : `select` 
+#### Selecting a task : `select`
 Selects the task identified by the index number used in the last task listing.
-Format: `select INDEX` 
+Format: `select INDEX`
 
 > Selects the task and loads the Google search page the task at the specified `INDEX`. The index refers to the index number shown in the most recent listing.
 > The index **must be a positive integer** 1, 2, 3, ...
 
 Examples:
 
-    list 
-    select 2 
+    list
+    select 2
 - Selects the 2nd task in the task list
-    find Homework 
-    select 1 
+    find Homework
+    select 1
 - Selects the 1st task in the results of the `find` command.
 
-#### Undo the last command : `undo` 
+#### Undo the last command : `undo`
 Undo the last command that have modified the task list (excluding undo).
-Format: `undo` 
+Format: `undo`
 Multiple undo actions are supported.
 
-### Create an alias command : `alias` 
+### Create an alias command : `alias`
 Defines an alternative short-hand command for an original command. Both original and new commands can be used.
-Format: `alias ORIGINAL_COMMAND_NAME as NEW_COMMAND_NAME` 
+Format: `alias ORIGINAL_COMMAND_NAME as NEW_COMMAND_NAME`
 
-> NEW_COMMAND_NAME must be a single word. 
+> NEW_COMMAND_NAME must be a single word.
 > ORIGINAL_COMMAND_NAME must be a command word that is specified in the help section
 
 Examples:
 
     alias mark as m
 - `m` can used to mark tasks as well.
 
-#### Remove an alias command : `unalias` 
+#### Remove an alias command : `unalias`
 Removes the short-hand command
-Format: `unalias NEW_COMMAND_NAME` 
+Format: `unalias NEW_COMMAND_NAME`
 
 > NEW_COMMAND_NAME must be a user-defined command word.
 
@@ -223,13 +248,9 @@ Examples:
     unalias m
 - `m` can no longer be used to mark tasks.
 
-#### Clearing all tasks : `clear` 
-Clears all tasks from the task list.
-Format: `clear` 
-
-#### Specifying a data storage location : `store` 
+#### Specifying a data storage location : `store`
 Specifies a folder as the data storage location
-Format: `store FILE_PATH` 
+Format: `store FILE_PATH`
 
 > FILE_PATH must be a valid directory path on the local computer
 
@@ -240,15 +261,44 @@ Format: `store FILE_PATH`
 The task data will be moved to the specific directory, and future data will be saved in that location.
 
 
-#### Exiting the program : `exit` 
+#### Exiting the program : `exit`
 Exits the program.
-Format: `exit` 
+Format: `exit`
 
 
 #### Keyboard Shortcuts
 
 1. Words that are UNDERLINED are keys on the keyboard.
-2. Use the UP ARROW and DOWN ARROW to scroll through earlier commands. 
+2. Use the UP ARROW and DOWN ARROW to scroll through earlier commands.
 3. If you are entering a command, use the DOWN ARROW to instantly clear the command line.
 4. Use TAB to switch between the various task lists e.g. uncompleted, overdue, upcoming
 
+#### Saving the data
+Agendum data is saved in the hard disk automatically after any command that changes the data.<br>
+There is no need to save manually.
+
+## FAQ
+
+**Q**: How do I transfer my data to another Computer?<br>
+**A**: Install Agendum in the other computer and overwrite the empty data file it creates with
+       the file that contains the data of your previous Agendum folder.
+
+## Command Summary
+
+Command | Format  
+-------- | :--------
+Add | `add NAME [DATETIME]`
+Alias |`alias OLD_COMMAND as NEW_COMMAND`
+Clear | `clear`
+Delete | `delete INDEX`
+Edit | `edit INDEX NAME`
+Find | `find KEYWORD [MORE_KEYWORDS]`
+Help | `help`
+List | `list`
+Mark | `mark INDEX`
+Schedule | `schedule INDEX DATETIME`
+Select | `select INDEX`
+Store | `store DIRECTORY`
+Unalias | `Unalias NEW_COMMAND`
+Undo | `undo`
+Unmark | `unmark INDEX`