[Other] The Upsidedown feature in BetterFormattingRedux makes some characters look awkward.

[gs-jeong]

Which plugin/theme is this about?
BetterFormattingRedux

Problem
When applying the existing Upsidedown format, there is an issue where some characters appear awkward. Therefore, although not addressing all characters, I have made changes to some of them to appear more natural. Could you please review the pull request?

before change
uppercase

lowercase

number

after change
uppercase

lowercase

number