Clarify that a "product" can be both hardware and software

Signed-off-by: Olle E. Johansson <[email protected]>

Author: oej

discovery/readme.md

@@ -15,9 +15,10 @@
 ## From product identifier to API endpoint
 
 TEA Discovery is the connection between a product identifier and the API endpoint.
-A "product" is something that the customer aquires or downloads. It can be a bundle
-of many digital devices or software applications. A "product" normally also has an
-entry in a large corporation's asset inventory system.
+A "product" is something that the customer aquires or downloads - hardware and/or software.
+
+It can be a bundle of many digital devices or software applications.
+A "product" normally also has an entry in a large corporation's asset inventory system.
 
 A product identifier is embedded in a URN where the identifier is one of many existing
 identifiers or a random string - like an EAN or UPC bar code, UUID, product