docs: update toc

docs: add IT dept for 4th

docs: add IS dept for 4th

docs: add CS dept for second term 4th

feat: add IT dept for fourth level

docs: add IS dept for fourth level first term

feat: add foruth level first term CS dept

docs: update toc

docs: add mm dept for third level second term

docs: add IT dept for sceond term

docs: add second term for IS dept

docs: add second term for cs dept

docs: add toc

fix mm dept

fix it dept