Added Singapore 2021 Public Holidays & updated remark text
@@ -34,7 +34,7 @@ class Singapore(HolidayBase):
# Holidays prior to 2000 may not be accurate.
- # Holidays after 2020: the following four moving date holidays whose exact
+ # Holidays after 2021: the following four moving date holidays whose exact
# date is announced yearly are estimated (and so denoted):
# - Hari Raya Puasa*
# - Hari Raya Haji*
