hexgon => hexagon

docs/main.js

@@ -203,7 +203,7 @@
     { name: 'triangle' },
     { name: 'rhombus' },
     { name: 'pentagon' },
-    { name: 'hexgon' },
+    { name: 'hexagon' },
     { name: 'heptagon' },
     { name: 'octagon' },
     { name: 'cross' },

src/shapes.js

@@ -61,6 +61,9 @@ export function pentagon() {
 export function hexgon() {
   return polygon({ split: 6, start: 30 });
 }
+export function hexagon() {
+  return polygon({ split: 6, start: 30 });
+}
 
 export function heptagon() {
   return polygon({ split: 7, start: -90});