Update 9.md

Author: gammasoft71

docs/documentation/tips_and_tricks/9.md

@@ -13,14 +13,14 @@ auto main() -> int {
   constexpr auto back_color_dark_blue = "\x1b[44m";
   constexpr auto fore_color_red = "\x1b[91m";
   constexpr auto fore_color_white = "\x1b[97m";
-  constexpr auto reset_terminal = "\x1b[0m";
+  constexpr auto reset_color = "\x1b[0m";
 
   std::print(fore_color_red);
   std::println("I'm a red text color");
   std::print(back_color_dark_blue);
   std::print(fore_color_white);
   std::println("I'm a white text on dark blue background color");
-  std::print(reset_terminal);
+  std::print(reset_color);
 }
 ```