Include steps on how to add an icon to the pattern-library and instance-sheet in contributing documentation
From: #237 (comment 136193997)
We should add the necessary steps one needs to take to properly add a new / edited icon into the pattern-library and the instance-sheet.
I am thinking this can go into the pattern-library.md file under the new heading of icons and we can link to it from the contributing.md file.
Thoughts?
Edited by Andy Volpe