update changelog format

Author: xwings

ChangeLog

@@ -1,19 +1,26 @@
 This file details the changelog of Qiling Framework.
 
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-[Version 1.4.1]: Nov Xth, 2021
+[Version 1.4.1]: Nov 15th, 2021
 
 New features:
 - Introduced riscv, both 32 and 64 (#980)
+- Added U-boot (#1000)
 
 Improvements:
 - Refactored core hooks (#966)
 - update ql.os.posix.const_mapping with more os/arch match (#973)
-- Minor refactor on ql.interpreter and ql.baremetal (#975)
 - More update in MCU modules (#971)
 - Fix getpeername and getsockname syscalls (#986)
 - Qdb improvements (#999)
 
+Contributors:
+- cq674350529
+- ucgJhe
+- cla7aye15I4nd
+- elicn
+- xwings
+
 
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 [Version 1.4.0]: Oct 20th, 2021