Fix comment length and syntax.

app/assets/stylesheets/pages/projects.scss

@@ -929,11 +929,10 @@ pre.light-well {
   }
 
   .variable-key {
-    /* 45px is not the actual maximum width. The
-      browser uses it to calculate cell width relative
-      to variable-value and variable-menu */
+    // Not the actual maximum width. Used to calculate cell width relative
+    // to variable-value and variable-menu
     max-width: 45px;
-    // This is the actual min-width, makes a difference only on small screens
+    // Is the actual min-width, makes a difference only on small screens
     min-width: 100px;
     overflow: hidden;
     word-wrap: break-word;