Merge pull request #57 from snookfin/patch-5

Funding platform --> optional

README.md

@@ -214,7 +214,7 @@ The url for that feed is:  [https://noagendaassets.com/enc/pc20sandbox.xml](http
    Attributes:
 
    - `url` (required) Full url to the specific show on the funding platform.
-   - `platform` (required) Identifies a payment or funding platform for the podcast. Service slugs should be recorded here in the repository.
+   - `platform` (optional) Identifies a payment or funding platform for the podcast. Service slugs should be recorded here in the repository.
    - `node value` (required) Used as free form string from the podcast owner to show to the listeners.  Ex. "Support us on Patreon!"
 
    The maximum recommended string length of the node value is 128 characters.