Update customization.md to include fork awesome font reference and refresh browser reference

docs/customization.md

@@ -66,6 +66,9 @@ Use of the Captcha feature on the registration page is configured during the Ple
 
 ## Site Logo, Brand Color, and Promo Panel List Items
 The site logo, brand color, and promo panel list items are customized by copying `soapbox.example.json` in the `static/instance` folder to `soapbox.json` and editing that file.  It is recommended that you test your edited soapbox.json file in a JSON validator, such as [JSONLint](https://jsonlint.com/), before using it.
+
+The icon names for the promo panel list items can be source from [Fork Awesome](https://forkaweso.me/Fork-Awesome/icons/). Note that you should hover over or click a selected icon to see what the icon's real name is, e.g. `world`
+
 The site logo, in SVG format, is rendered to be able to allow the site theme colors to appear in the less than 100% opaque sections of the logo.
 The logo colors are rendered in a color that provides contrast for the site theme.
 
@@ -73,11 +76,10 @@ The `navlinks` section of the `soapbox.json` file references the links that are
 
 The `brandColor` in `soapbox.json` refers to the main color upon which the look of soapbox-fe is defined.
 
-After editing your HTML files and folder names, re-create the webpack and restart the soapbox-fe service to effect the changes.
+After editing your HTML files and folder names, save the file and refresh your browser.
 
 ## Favicon
-The favicon is customized by dropping a favicon.png file into the `/static` folder.
-Re-create the webpack and start the soapbox-fe service to effect the changes.
+The favicon is customized by dropping a favicon.png file into the `/static` folder and refreshing your browser.
 
 ## About Pages
 Soapbox supports any number of custom HTML pages under `yoursite.com/about/:slug`.