Update README.md

shrunyan · web-flow · commit 4acf82d59bb8 · 2021-08-24T13:42:37.000-07:00
diff --git a/README.md b/README.md
@@ -5,6 +5,7 @@ Zesty Unique Identifiers (ZUID) '/zoo ids/' are used to label each Zesty.io crea
 * A ZUID is a string
 * A ZUID is typically 15-20 characters in length, but may be up to 50 characters
 * A ZUID contains 3 components, separated by hyphens/dashes
+* A ZUID should contain all lowercase alpha characters
 
 Example ZUID:
 
