improved link color contrast

changed the links' blue color to a darker shade to meet color contrast (web accessibility) standards

Author: oikos99

_sass/_variables.scss

@@ -72,7 +72,7 @@ $primary-color              : #7a8288;
 $success-color              : #62c462;
 $warning-color              : #f89406;
 $danger-color               : #ee5f5b;
-$info-color                 : #52adc8;
+$info-color                 : #236070;
 
 /* brands */
 $behance-color              : #1769FF;