README-ngage.md: Found a few more non-UTF-8 things.

Author: icculus

docs/README-ngage.md

@@ -38,7 +38,7 @@ will breathe new life into this beloved yet obscure platform.
 This port is lovingly dedicated to the ever-nostalgic Dreamcast homebrew scene —
 because if we managed to pull this off for the N-Gage (yes, the N-Gage), surely
 you guys can stop clinging to SDL2 like it's a rare Shenmue prototype and finally
-make the leap to SDL3.  It’s 2025, not 1999 — and let’s be honest, you’re rocking
+make the leap to SDL3.  It's 2025, not 1999 -- and let's be honest, you're rocking
 a state-of-the-art C23 compiler.  The irony writes itself.
 
 ## Existing Issues and Limitations