Init dogfooding page

Author: mfisher87

for-instructors/dogfooding.md

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+# Dogfooding our processes
+
+["Dogfooding" or "eating our own dog food"](https://en.wikipedia.org/wiki/Eating_your_own_dog_food)
+refers to the practice of using our own product.
+This is important because it enables us to continuously test the same experience that
+our users will use on the day of the workshop.