Edit UG for Help, AddInterview, AddApplicant and AddInterviewer commands

docs/UserGuide.md

@@ -58,15 +58,29 @@ while still having the benefits of a Graphical User Interface (GUI).
 
 * We give you the freedom to make any edits to the addressbook.json file but do not that if any invalid edits (such as adding in `null`, non-english alphabet or emojis) are made to the addressbook.json before (re)launching the application, then no data will load and an exception will be viewed in the terminal. 
 
+## Launching help window : `help` ##
+This is your first time opening Tether and you are unfamiliar with the commands. It would be nice to receive some guidance about the commands.
+This is where `help` command is here to help.
+Simply execute `help` and this will launch the help window. You can also press the help button to launch it as well.
+
+Format : `help`
+![img.png](img.png)
 
 ## Adding an applicant: `add_applicant`
+To get started on using Tether, add an applicant whose resume you just received.
 
-Format: `add_applicant n/NAME p/PHONE e/EMAIL [t/TAG]`
+Simply execute `add_applicant n/NAME p/PHONE e/EMAIL`. The required applicant's information is their name, phone number and email address.
+The applicant will appear under the `Persons` column.
 
-Examples:
+![img_1.png](img_1.png)
 
+Examples:
 * `add_applicant n/John Doe p/81239123 e/[email protected]`
-* `add_applicant n/John Doe p/81239123 e/[email protected] t/friends t/cool`
+* `add_applicant n/Wesley Yu p/88889999 e/[email protected]`
+
+**Notes**:
+* Different applicants with the same name can be entered as long as their phone numbers and emails are different.
+* Remark field will empty and can only be added upon entering `remark` command.
 
 Note that the remark field would be empty be default and can only be changed after the person is added.
 
@@ -93,19 +107,22 @@ A simple example usage would therefore be
 * For convenience, STATUS is case-insensitive i.e. `s/accepted` is as valid as `s/AcCepTed`.
 * If you add an interview, the involved applicant's status will change automatically from "resume review" to "pending interview". Conversely if you delete an interview involving an applicant, their status will _revert_ to "resume review"
 
-## Adding a interviewer: `add_interviewer`
+## Adding an interviewer: `add_interviewer`
+Now that you have all your required applicants, you would like to schedule an interview. But before that, you would need to enter the interviewer needed to conduct the interview.
 
-Adds an interviewer to the Tether.
+Simply execute `add_interviewer n/NAME p/PHONE e/EMAIL`. The required interviewer's information is their name, phone number and email address.
+The interviewer will appear under the `Persons` column.
 
-Format: `add_interviewer n/NAME p/PHONE e/EMAIL [t/TAG]`
+![img_2.png](img_2.png)
 
 Examples:
-
 * `add_interviewer n/John Doe p/81239123 e/[email protected]`
-* `add_interviewer n/John Doe p/81239123 e/johndoe123@gmail.com t/friends t/cool`
+* `add_interviewer n/Yash p/99998888 e/yash@gmail.com`
 
-Note that the remark field would be empty be default and can only be changed after the person is added.
 
+**Notes**:
+* Different interviewers with the same name can be entered as long as their phone numbers and emails are different.
+* Remark field will empty and can only be added upon entering `remark` command.
 
 ## Adding a status to an interviewer: `interviewer_status`
 
@@ -146,14 +163,18 @@ If you would like to not have a description, simply leave it blank with the keyw
 Upon successful addition, the interview will appear under the column named `Upcoming Interviews`.
 
 Simply execute the command show below to start scheduling an interview.
-Format: `add_interview desc/DESCRIPTION date/DATE st/START TIME et/END TIME a/APPLICANT'S
-    PHONE NUMBER i/INTERVIEWER'S PHONE NUMBER`
+Format: `add_interview desc/DESCRIPTION date/DATE st/START_TIME et/END_TIME a/APPLICANT_PHONE_NUMBER i/INTERVIEWER_PHONE_NUMBER`
 
 A simple example usage would be `add_interview desc/technical date/2024-11-11 st/12:00 et/15:00 a/12345678 i/87654321`. 
 Executing this would result in the following display: 
 
 ![img.png](images/addInterviewExample.png)
 
+**Notes**:
+
+* You can still schedule new interviews for applicants who have already been rejected or accepted. This is because there can follow up or subsequent interviews.
+
+
 ## Listing all persons:
 
 Now that you have added multiple `Applicants` and `Interviewers` into Tether, it would be nice to view them with their