Update README.md

Author: Qmaker-programmer

README.md

@@ -243,7 +243,7 @@ Estrella
 ```bash
 # 1. Clonar el repositorio
 git clone https://github.com/Qmaker-programmer/stackruby.git
-cd StackRuby
+cd stackruby
 
 # 2. Instalar dependencias
 bundle install