Move icon guideline documention to /docs folder.

Also added reference in icons folder.

DDFFORM-6

docs/Icon-guidelines.md

@@ -0,0 +1,16 @@
+# Icon Usage Guidelines
+
+This folder contains SVG icons that are used in the design system. When using 
+icons from this folder, please follow the guidelines below:
+
+- Icons located in public/ folder is the current source of truth. All icons 
+will be placed in this folder. Ensure that icons placed gere are using the 
+`class` attribute, and not `className` for SVG element. 
+
+- For icons used in React components that require class modifications or 
+similar, first create the icon in public/icons, and then manually copy the SVG
+from the `public/icons` folder and make any necessary changes, i.e replacing 
+the `class` with `className` or other modifications.
+
+Currently, there is no automated solution for this process that ensures 
+consistency for this. This may be changed in the future. 

public/icons/README.md

@@ -1,9 +1,3 @@
 # Icon Usage Guidelines
 
-This folder contains SVG icons that are used in the design system. When using icons from this folder, please follow the guidelines below:
-
-- Icons located in public/ folder is the current source of truth. All icons will be placed in this folder. Ensure that icons placed gere are using the `class` attribute, and not `className` for SVG element. This is necessary for the icons to work properly when the folder is copied over using the "dapple"-setup. 
-
-- For icons used in React components that require class modifications or similar, first create the icon in public/icons, and then manually copy the SVG from the `public/icons` folder and make any necessary changes, i.e replacing the `class` with `className` or other modifications.
-
-Currently, there is no automated solution for this process that ensures consistency for this. This may be changed in the future. 
+For information on how to use icons for this project, see [icon-guidelines.md](../../docs/Icon-guidelines.md).