Update addElderly and editElderly in command summary

docs/UserGuide.md

@@ -106,7 +106,7 @@ Format: `viewDetails en/ELDERLY_NAME`
 
 Deletes an elderly from NurseyBook.
 
-Format: `deleteElderly INDEX`
+Format: `deleteElderly INDEX`   
 
 * Deletes the elderly at the specified `INDEX`.
 * The index refers to the index number shown in the displayed elderly list.
@@ -256,14 +256,14 @@ _Details coming soon ..._
 
 Action | Format, Examples
 --------|------------------
-**Add Elderly** | `addElderly en/ELDERLY_NAME p/PHONE_NUMBER a/AGE r/ROOMNO g/GENDER [t/TAG]…​` <br> e.g., `addElderly en/Khong Guan p/92345678 a/77 r/420 g/M t/diabetes`
+**Add Elderly** | `addElderly en/ELDERLY_NAME a/AGE r/ROOMNO g/GENDER [t/TAG]…​ [nn/NOK_NAME] [rs/NOK_RELATIONSHIP] [p/NOK_PHONE_NUMBER] [e/NOK_EMAIL] [addr/NOK_ADDRESS]` <br> e.g., `addElderly en/Khong Guan a/80 g/M r/201 nn/Gong Kuan rs/Brother p/91234567 e/[email protected] addr/London Street 11`
 **Clear** | `clear`
 **Delete Elderly** | `deleteElderly INDEX`<br> e.g., `deleteElderly 3`
 **Delete NoK of Elderly** | `deleteNok INDEX`<br> e.g., `deleteNok 3`
 **Add Tag** | `addTag INDEX t/TAG [t/TAG]…​` e.g., `addTag 1 t/diabetes`
 **Delete Tag** | `deleteTag INDEX t/TAG [t/TAG]…​`
 **Filter** | `filter t/TAG [t/TAG]…​`
-**Edit Elderly** | `editElderly INDEX [en/ELDERLY_NAME] [p/PHONE_NUMBER] [a/AGE][r/ROOMNO] [g/GENDER] [t/TAG]…​` <br> e.g., `editElderly en/John p/92345678 a/77 r/420 g/M t/diabetes`
+**Edit Elderly** | `editElderly INDEX [en/ELDERLY_NAME] [a/AGE] [g/GENDER] [r/ROOMNO] [t/TAG]…​ [nn/NOK_NAME] [rs/NOK_RELATIONSHIP] [p/NOK_PHONE_NUMBER] [e/NOK_EMAIL] [addr/NOK_ADDRESS]`
 **View Elderly Details** | `viewDetails en/ELDERLY_NAME`<br> e.g., `viewDetails en/James`
 **Remind** | `remind`
 **Add task** | `addTask [en/ELDERLY_NAME] desc/DESCRIPTION date/DATE time/TIME` <br> e.g., `addTask en/John desc/check insulin level date/2021-09-25 time/10.00am`