Tweak css generated template

Author: vicocamacho

lib/generators/binco/install/templates/stylesheet.scss

@@ -1,10 +1,10 @@
 // Install bootstrap using yarn
 // $ yarn add bootstrap
-// @import "bootstrap_variables";
-// @import "bootstrap/scss/bootstrap";
+@import "bootstrap_variables";
+@import "bootstrap/scss/bootstrap";
 
 // Install select2 with yarn
 // $ yarn add select2
-// @import "select2/dist/css/select2";
+@import "select2/dist/css/select2";
 
 @import "binco";