chore(github): cleanup reference link in .github/funding.yml

Signed-off-by: Lexus Drumgold <[email protected]>

.github/funding.yml

@@ -1,6 +1,6 @@
 # FUNDING PLATFORMS
 #
-# https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/displaying-a-sponsor-button-in-your-repository
+# https://docs.github.com/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/displaying-a-sponsor-button-in-your-repository
 
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 github: