Merge pull request AY2324S2-CS2103-F15-2#99 from Hwww23/master

Update UserGuide.md

docs/UserGuide.md

@@ -27,7 +27,7 @@ TutorsGo is a **desktop app for managing contacts, optimized for use via a Comma
 
    * `list` : Lists all contacts.
 
-   * `add n/John Doe p/98765432 e/johnd@example.com a/John street, block 123, #01-01 s/English d/2024-02-03 1800` : Adds a contact named `John Doe` to the Address Book.
+   * `add n/John Doe p/98765432 e/johnd@example.com a/John street, block 123, #01-01 s/English at/present pa/paid d/2024-02-03 1800` : Adds a contact named `John Doe` to the Address Book.
 
    * `delete 3` : Deletes the 3rd contact shown in the current list.
 
@@ -57,7 +57,7 @@ TutorsGo is a **desktop app for managing contacts, optimized for use via a Comma
 * Parameters can be in any order.<br>
   e.g. if the command specifies `n/NAME p/PHONE_NUMBER`, `p/PHONE_NUMBER n/NAME` is also acceptable.
 
-* Extraneous parameters for commands that do not take in parameters (such as `help`, `view` `list`, `exit` and `clear`) will be ignored.<br>
+* Extraneous parameters for commands that do not take in parameters (such as `help`, `view`, `list`, `exit` and `clear`) will be ignored.<br>
   e.g. if the command specifies `help 123`, it will be interpreted as `help`.
 
 * If you are using a PDF version of this document, be careful when copying and pasting commands that span multiple lines as space characters surrounding line-breaks may be omitted when copied over to the application.
@@ -76,13 +76,15 @@ Format: `help`
 
 Adds a student to the address book.
 
-Format: `add n/NAME p/PHONE_NUMBER e/EMAIL a/ADDRESS [g/GRADE] [s/SUBJECT] [d/DATETIME]…​ [t/TAG]…​`
+Format: `add n/NAME p/PHONE_NUMBER e/EMAIL a/ADDRESS [g/GRADE] [s/SUBJECT] [at/ATTENDANCE] [pa/PAYMENT] [d/DATETIME]…​ [t/TAG]…​`
 
 <div markdown="span" class="alert alert-primary">:bulb: **Tip:**
 A student can have any number of tags (including 0)
 </div>
 * Grade follows NUS grading system. (i.e. [A+, A, A-, B+, B, B-, C+, C, D+, D, F])
-* DateTime should be in yyyy-mm-dd hhmm
+* DateTime should be in yyyy-mm-dd hhmm and a valid date
+* Attendance should be present or absent
+* Payment should be paid or not paid
 
 Examples:
 * `add n/John Doe p/98765432 e/johnd@example.com a/John street, block 123, #01-01 g/B+ s/Mathematics d/2024-02-03 1800`
@@ -98,14 +100,16 @@ Format: `list`
 
 Edits an existing student in the address book.
 
-Format: `edit INDEX [n/NAME] [p/PHONE] [e/EMAIL] [a/ADDRESS] [g/GRADE] [s/SUBJECT] [d/DATETIME]…​ [t/TAG]…​`
+Format: `edit INDEX [n/NAME] [p/PHONE] [e/EMAIL] [a/ADDRESS] [g/GRADE] [s/SUBJECT] [at/ATTENDANCE] [pa/PAYMENT] [d/DATETIME]…​ [t/TAG]…​`
 
 * Edits the student at the specified `INDEX`. The index refers to the index number shown in the displayed student list. The index **must be a positive integer** 1, 2, 3, …​
 * At least one of the optional fields must be provided.
 * Existing values will be updated to the input values.
 * When editing tags, the existing tags of the student will be removed i.e adding of tags is not cumulative.
 * You can remove all the student’s tags by typing `t/` without
     specifying any tags after it.
+* * You can remove all the student’s datetime by typing `d/` without
+    specifying any datetime after it.
 
 Examples:
 *  `edit 1 p/91234567 e/johndoe@example.com` Edits the phone number and email address of the 1st student to be `91234567` and `johndoe@example.com` respectively.
@@ -241,4 +245,5 @@ Action | Format, Examples
 **View Schedule**|`view`
 **history**|`history`
 **List** | `list`                                                                                                                                                                
-**Help** | `help`                                                                                                                                                                  
+**Help** | `help`
+**Exit** | `exit`