Added a new util class for highlight words, proper variables added for light and dark

public/sass/_variables.dark.scss

@@ -54,6 +54,8 @@ $body-color:   		 $gray-4;
 $text-color:   	   		$gray-4;
 $text-color-strong: 	$white;
 $text-color-weak: 		$gray-2;
+$text-color-emphasis: 	$gray-5;
+
 
 // gradients
 $brand-gradient: linear-gradient(to right, rgba(255,213,0,0.7) 0%, rgba(255,68,0,0.7) 99%, rgba(255,68,0,0.7) 100%);

public/sass/_variables.light.scss

@@ -60,6 +60,7 @@ $body-color:    $gray-1;
 $text-color:    		$gray-1;
 $text-color-strong: 	$white;
 $text-color-weak: 		$gray-1;
+$text-color-emphasis: 	$dark-5;
 
 // gradients
 $brand-gradient: linear-gradient(to right, rgba(255,213,0,1.0) 0%, rgba(255,68,0,1.0) 99%, rgba(255,68,0,1.0) 100%);

public/sass/utils/_utils.scss

@@ -6,6 +6,11 @@
   color: $brand-primary;
 }
 
+.emphasis-word {
+  font-weight: 500;
+  color: $text-color-emphasis;
+}
+
 // Close icons
 // --------------------------------------------------
 .close {