chore: update LICENSE to avoid merge separators

LICENSE

@@ -2,7 +2,7 @@ Licence Creative Commons Attribution 4.0 International (CC BY 4.0)
 
 Copyright (c) 2015-present [Kévin Dunglas]
 
-=======================================================================
+---
 
 Creative Commons Corporation ("Creative Commons") is not a law firm and
 does not provide legal services or legal advice. Distribution of
@@ -54,7 +54,7 @@ exhaustive, and do not form part of our licenses.
      for the public:
 	wiki.creativecommons.org/Considerations_for_licensees
 
-=======================================================================
+---
 
 Creative Commons Attribution 4.0 International Public License
 
@@ -375,7 +375,7 @@ that apply to the Licensor or You, including from the legal
 processes of any jurisdiction or authority.
 
 
-=======================================================================
+---
 
 Creative Commons is not a party to its public
 licenses. Notwithstanding, Creative Commons may elect to apply one of