Typos un peu partout

sass/_library/_layout.scss

@@ -8,7 +8,7 @@
   overflow: hidden;
 }
 
-/* blocks that needs to be placed under floats */
+/* blocks that need to be placed under floats */
 .clear {
   clear: both;
 }

sass/_library/grillade-flex.scss

@@ -7,7 +7,7 @@
 // Responsive breakpoints variables
 
 // Warning : you should use your own values, regardless of the devices
-// Best practise : (max-width: ($BP - 1)) and (min-width: $BP)
+// Best practice : (max-width: ($BP - 1)) and (min-width: $BP)
 
 $tiny: 480px !default; // or 'em' if you prefer, of course
 $small: 576px !default;

sass/_library/grillade-grid.scss

@@ -87,6 +87,7 @@ $medium: 768px !default;
       grid-column: auto / span #{$i};
     }
   }
+
   [class*="-small-all"] {
     grid-column: 1 / -1;
   }