Add edit icons

CHANGELOG.md

@@ -26,6 +26,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
   - `cloud-rain`
   - `cloud-snow`
   - `codepen`
+  - `edit-2`
+  - `edit-3`
   - `repeat`
   - `slack`
   - `trend-down`

icons/core/edit-2.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
+    <polygon points="16 3 21 8 8 21 3 21 3 16 16 3" fill="none" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"/>
+</svg>

icons/core/edit-3.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
+    <polygon points="14 2 18 6 7 17 3 17 3 13 14 2" fill="none" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"/>
+    <line x1="3" y1="22" x2="21" y2="22" fill="none" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"/>
+</svg>