formalize publisher tag

docs/1.0.md

@@ -1347,7 +1347,7 @@ may not have access to a list of resolvable `<podcast:guid>`'s.  In that case, i
 be resolved and used.
 
 ### Parent
-&nbsp; `<channel>` or `<podcast:podroll>` or `<podcast:valueTimeSplit>`
+&nbsp; `<channel>` or `<podcast:podroll>` or `<podcast:valueTimeSplit>` or `<podcast:publisher>`
 
 ### Count
 &nbsp; Multiple
@@ -1685,4 +1685,44 @@ use the `<podcast:chat>` tag at the `<item>` or `<podcast:liveItem>` level.
     accountId="@bob:example.com"
     space="#general:example.com" 
 />
+```
+
+
+
+<br><br><br><br><!-- Tag block -->
+## Publisher
+`<podcast:publisher>`<br><br>
+This element allows a podcast feed to link to it's "publisher feed" parent.  This is useful when a parent publishing 
+entity wants to attest ownership over all of the podcast feeds it owns/publishes.  This element must contain exactly 
+one `<podcast:remoteItem medium="publisher">` element pointing to the publisher feed.  For widest compatibility, it is 
+highly recommended to use the `feedUrl` attribute of the `<podcast:remoteItem>` element in this capacity.
+
+For complete implementation details regarding publisher feeds and how to create them, please see the full publisher 
+feed [documentation](publishers/publishers.md).
+
+### Parent
+&nbsp; `<channel>`
+
+### Count
+&nbsp; Single
+
+### Example:
+```xml
+<channel>
+    <title><![CDATA[It's A Mood]]></title>
+    <description>A value4value happenstance music show.</description>
+    <link>https://example.org/itsamood</link>
+    <generator>Sovereign Feeds</generator>
+    <podcast:person href="https://example.org/mikeneumann" group="cast" role="host" img="https://example.org/mikeneumann/image.jpg">Mike Neumann</podcast:person>
+    <podcast:guid>469b403f-db2d-574c-9db9-96dbb4f6561c</podcast:guid>
+    <podcast:medium>podcast</podcast:medium>
+    <podcast:publisher>
+        <podcast:remoteItem medium="publisher" feedGuid="003af0a0-6a45-55cf-b765-68e3d349551a" feedUrl="https://agilesetmedia.com/assets/static/feeds/publisher.xml"/>            
+    </podcast:publisher>
+    <item>
+        <title><![CDATA[Runnin']]></title>
+        <pubDate>Wed, 03 Apr 2024 02:06:28 +0000</pubDate>
+        ...
+    </item>
+</channel>
 ```