Update TEAM.md to include 2020 and 2024 teams (#491)

* Update TEAM.md to include 2020 and 2024 teams

* correct lead

* Add Hannah

* Fix Hannah's surname

---------

Co-authored-by: Jessica Feng <54833118+JessicaF@users.noreply.github.com>
Co-authored-by: Jessica <Jessica.Feng101@gmail.com>

Author: francojreyes

TEAM.md

@@ -1,11 +1,32 @@
 # Freerooms Team
 
+## 2024
+
+### Leads
+
+- Jessica Feng (@JessicaF)
+- Richard Xue (@Vinegarette)
+
+### Developers
+
+- Andrew Zhang (@azjy89)
+- Livia Wang (@liviawangg)
+- Sophia Liu (@sobariu)
+- Mark Tran (@marktran2)
+- Cherise Chan (@cherisechan)
+- Hung Pham (@SkellyBG)
+- Kelly Su (@kellysu1)
+- Hannah Ahn (@TimezDed)
+
 ## 2023
+
 ### Leads
+
 - Franco Reyes (@francojreyes)
 - Bob Chen (@3bobchen)
 
 ### Developers
+
 - Harry Zhang (@chromaggus)
 - Alec Tan (@alecntan)
 - Jessica Feng (@JessicaF)
@@ -18,11 +39,14 @@
 - Nicole Chun (@crocyoiin)
 
 ## 2022
+
 ### Leads
+
 - Bob Chen (@3bobchen)
 - Brittany Li (@Britain1680)
 
 ### Developers
+
 - William Zhong (@williamyzhong)
 - Benjamin Hung (@Benicillin1610)
 - Franco Reyes (@francojreyes)
@@ -33,11 +57,26 @@
 - Justin Wu (@Jwu44)
 
 ## 2021
+
 ### Lead
+
 - Mun Joon Teo (@munjoonteo)
 
 ### Developers
+
 - Sarah Leung (@sarah-leung)
 - Grace Kan (@Grace338)
 - Keshiga Gopalarajah (@Kesh-ga)
 - Damian Stevanoski (@damo190)
+
+## 2020
+
+### Lead
+
+- Callum Avery (@nugycal)
+
+### Developers
+
+- Kyu-Sang Kim (@hexDoor)
+- Jerry Lu (@metallicOxide)
+- Natalie Eleftheriades (@natLF3RD)