Fix typo of a word

WRITING.md

@@ -6,7 +6,7 @@ Object-Oriented Tacos
 * Here at Tacofancy, we're writing _object-oriented_ taco recipes — each part of a taco is its own taco object that can be combined (or re-combined) into full tacos.
 * That means that to create a [full taco](/full_tacos) recipe, you will actually create a few different taco objects, like a [base layer](/base_layers), some [mixins](/mixins), a [condiment](/condiments) or two, and even a [seasoning](/seasonings), and then combine them in the [full taco](/full_tacos) recipe.
 * A great example of this is the [Pulled Pork, Chard, and Pickled Onion Tacos](/full_tacos/pork_chard_onion.md), which were assembled entirely from taco objects (in this case, two base layers and one condiment).
-* If you submit a taco that doesn't abide by this object-oriented philosophy, we'll toss it back to you for reformatting, so do go head and do this step from jump.
+* If you submit a taco that doesn't abide by this object-oriented philosophy, we'll toss it back to you for reformatting, so do go ahead and do this step from jump.
 
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