Update README.md

Author: tphinney

README.md

@@ -12,7 +12,7 @@ We’d love to support your icon needs! Please submit your request here on githu
 
 Please note that Google Fonts does not accept user submissions of finished icon designs! There are fairly strict  guidelines for Material icons, plus Google has upstream source files from which this repo is generated. Therefore, Google does not accept pull requests for icon files (whether new icon suggestions, or fixes for existing icons). Concepts are appreciated—just don’t design SVGs and submit them via pull request.
 
-However, users are perfectly welcome to point at outside files or images as examples—even multiple examples—for the kind of thing they want, but they won’t just be taken “as is.” 
+However, users are perfectly welcome to point at outside files or images as examples—for the kind of thing they want, but they won’t just be taken “as is.” This works especially well if you have multiple examples for a single icon, to help us understand the “essence” of the idea.
 
 > For example, there is a fairly universal conceptual logo/icon for “agender,” so if you were proposing Google add an agender icon in the Material style, either mentioning that, or pointing at https://www.google.com/search?q=agender+icon would be a helpful tip.